ALT-BU-2021-3927-1
Branch p9 update bulletin.
Package LibreOffice-still updated to version 7.0.6.2-alt1 for branch p9 in task 272060.
Closed vulnerabilities
BDU:2021-05337
Уязвимость пакета офисных программ LibreOffice, связанная с ошибками при формировании документов documentsignatures.xml, macrosignatures.xml, позволяющая нарушителю манипулировать подписанными документами
BDU:2022-05923
Уязвимость пакета офисных программ LibreOffice, связанная с ошибками процедуры подтверждения подлинности сертификата, позволяющая нарушителю оказать воздействие на целостность данных
Modified: 2024-11-21
CVE-2021-25633
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
Modified: 2024-11-21
CVE-2021-25634
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
Package postgresql12 updated to version 12.7-alt0.M90P.1 for branch p9 in task 272061.
Closed vulnerabilities
BDU:2021-02774
Уязвимость реализации команды UPDATE ... RETURNING системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02775
Уязвимость реализации команд INSERT ... ON CONFLICT ... DO UPDATE системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02776
Уязвимость системы управления базами данных PostgreSQL , связанная с выходом операции за границы буфера при обработке массива, позволяющая нарушителю выполнить произвольный код
Modified: 2024-11-21
CVE-2021-32027
A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://www.postgresql.org/support/security/CVE-2021-32027/
- https://www.postgresql.org/support/security/CVE-2021-32027/
Modified: 2024-11-21
CVE-2021-32028
A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32028
- https://www.postgresql.org/support/security/CVE-2021-32028
Modified: 2024-11-21
CVE-2021-32029
A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32029/
- https://www.postgresql.org/support/security/CVE-2021-32029/
Package postgresql9.6 updated to version 9.6.22-alt0.M90P.1 for branch p9 in task 272061.
Closed vulnerabilities
BDU:2021-02775
Уязвимость реализации команд INSERT ... ON CONFLICT ... DO UPDATE системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02776
Уязвимость системы управления базами данных PostgreSQL , связанная с выходом операции за границы буфера при обработке массива, позволяющая нарушителю выполнить произвольный код
Modified: 2024-11-21
CVE-2021-32027
A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://www.postgresql.org/support/security/CVE-2021-32027/
- https://www.postgresql.org/support/security/CVE-2021-32027/
Modified: 2024-11-21
CVE-2021-32028
A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32028
- https://www.postgresql.org/support/security/CVE-2021-32028
Package postgresql10 updated to version 10.17-alt0.M90P.1 for branch p9 in task 272061.
Closed vulnerabilities
BDU:2021-02775
Уязвимость реализации команд INSERT ... ON CONFLICT ... DO UPDATE системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02776
Уязвимость системы управления базами данных PostgreSQL , связанная с выходом операции за границы буфера при обработке массива, позволяющая нарушителю выполнить произвольный код
Modified: 2024-11-21
CVE-2021-32027
A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://www.postgresql.org/support/security/CVE-2021-32027/
- https://www.postgresql.org/support/security/CVE-2021-32027/
Modified: 2024-11-21
CVE-2021-32028
A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32028
- https://www.postgresql.org/support/security/CVE-2021-32028
Package postgresql11 updated to version 11.12-alt0.M90P.1 for branch p9 in task 272061.
Closed vulnerabilities
BDU:2021-02774
Уязвимость реализации команды UPDATE ... RETURNING системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02775
Уязвимость реализации команд INSERT ... ON CONFLICT ... DO UPDATE системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02776
Уязвимость системы управления базами данных PostgreSQL , связанная с выходом операции за границы буфера при обработке массива, позволяющая нарушителю выполнить произвольный код
Modified: 2024-11-21
CVE-2021-32027
A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://www.postgresql.org/support/security/CVE-2021-32027/
- https://www.postgresql.org/support/security/CVE-2021-32027/
Modified: 2024-11-21
CVE-2021-32028
A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32028
- https://www.postgresql.org/support/security/CVE-2021-32028
Modified: 2024-11-21
CVE-2021-32029
A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32029/
- https://www.postgresql.org/support/security/CVE-2021-32029/
Package postgresql12-1C updated to version 12.6-alt1.M90P.1 for branch p9 in task 272061.
Closed vulnerabilities
BDU:2021-00810
Уязвимость системы управления базами данных PostgreSQL, связанная с ошибками механизмов безопасности, позволяющая нарушителю получить значения столбцов из сообщения об ошибке (без привилегии SELECT)
BDU:2021-02774
Уязвимость реализации команды UPDATE ... RETURNING системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02775
Уязвимость реализации команд INSERT ... ON CONFLICT ... DO UPDATE системы управления базами данных PostgreSQL, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2021-02776
Уязвимость системы управления базами данных PostgreSQL , связанная с выходом операции за границы буфера при обработке массива, позволяющая нарушителю выполнить произвольный код
Modified: 2024-11-21
CVE-2021-32027
A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- https://bugzilla.redhat.com/show_bug.cgi?id=1956876
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://security.netapp.com/advisory/ntap-20210713-0004/
- https://www.postgresql.org/support/security/CVE-2021-32027/
- https://www.postgresql.org/support/security/CVE-2021-32027/
Modified: 2024-11-21
CVE-2021-32028
A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- https://bugzilla.redhat.com/show_bug.cgi?id=1956877
- GLSA-202211-04
- GLSA-202211-04
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32028
- https://www.postgresql.org/support/security/CVE-2021-32028
Modified: 2024-11-21
CVE-2021-32029
A flaw was found in postgresql. Using an UPDATE ... RETURNING command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://bugzilla.redhat.com/show_bug.cgi?id=1956883
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://security.netapp.com/advisory/ntap-20211112-0003/
- https://www.postgresql.org/support/security/CVE-2021-32029/
- https://www.postgresql.org/support/security/CVE-2021-32029/
Modified: 2024-11-21
CVE-2021-3393
An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.
Package kernel-image-un-def updated to version 5.10.37-alt1 for branch p9 in task 271841.
Closed vulnerabilities
BDU:2021-04825
Уязвимость функции bpf_ringbuf_reserve() ядра операционной системы Linux , связанная с записью за границами буфера в памяти, позволяющая нарушителю выполнить произвольный код в контексте ядра
BDU:2021-04842
Уязвимость подсистемы eBPF ядра операционной системы Linux , связанная с чтением за границами буфера в памяти, позволяющая нарушителю выполнить произвольный код в контексте ядра
BDU:2021-04843
Уязвимость подсистемы io_uring ядра операционной системы Linux, связанная с записью за границами буфера в памяти, позволяющая нарушителю выполнить произвольный код
BDU:2021-04855
Уязвимость компонента net/sctp/socket.c ядра операционной системы Linux, позволяющая нарушителю повысить свои привилегии
BDU:2021-04856
Уязвимость сокетов nfc операционной системы Linux , связанная с использованием памяти после её освобождения, позволяющая нарушителю повысить свои привилегии
Modified: 2024-11-21
CVE-2021-23133
A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket.
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- [oss-security] 20210510 Re: CVE-2021-23133: Linux kernel: race condition in sctp sockets
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b166a20b07382b8bc1dcee2a448715c9c2c81b5b
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b166a20b07382b8bc1dcee2a448715c9c2c81b5b
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update
- FEDORA-2021-e6b4847979
- FEDORA-2021-e6b4847979
- FEDORA-2021-8cd093f639
- FEDORA-2021-8cd093f639
- FEDORA-2021-a963f04012
- FEDORA-2021-a963f04012
- https://security.netapp.com/advisory/ntap-20210611-0008/
- https://security.netapp.com/advisory/ntap-20210611-0008/
- https://www.openwall.com/lists/oss-security/2021/04/18/2
- https://www.openwall.com/lists/oss-security/2021/04/18/2
Modified: 2024-11-21
CVE-2021-23134
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update
- FEDORA-2021-286375de1e
- FEDORA-2021-286375de1e
- FEDORA-2021-05152dbcf5
- FEDORA-2021-05152dbcf5
- https://security.netapp.com/advisory/ntap-20210625-0007/
- https://security.netapp.com/advisory/ntap-20210625-0007/
- https://www.openwall.com/lists/oss-security/2021/05/11/4
- https://www.openwall.com/lists/oss-security/2021/05/11/4
Modified: 2024-11-21
CVE-2021-3489
The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=4b81ccebaeee885ab1aa1438133f2991e3a2b6ea
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=4b81ccebaeee885ab1aa1438133f2991e3a2b6ea
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4950-1
- https://ubuntu.com/security/notices/USN-4950-1
- [oss-security] CVE-2021-3489 - Linux kernel eBPF RINGBUF map oversized allocation
- [oss-security] CVE-2021-3489 - Linux kernel eBPF RINGBUF map oversized allocation
- https://www.zerodayinitiative.com/advisories/ZDI-21-590/
- https://www.zerodayinitiative.com/advisories/ZDI-21-590/
Modified: 2024-11-21
CVE-2021-3490
The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).
- http://packetstormsecurity.com/files/164015/Linux-eBPF-ALU32-32-bit-Invalid-Bounds-Tracking-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/164015/Linux-eBPF-ALU32-32-bit-Invalid-Bounds-Tracking-Local-Privilege-Escalation.html
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=049c4e13714ecbca567b4d5f6d563f05d431c80e
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=049c4e13714ecbca567b4d5f6d563f05d431c80e
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4950-1
- https://ubuntu.com/security/notices/USN-4950-1
- [oss-security] CVE-2021-3490 - Linux kernel eBPF bitwise ops ALU32 bounds tracking
- [oss-security] CVE-2021-3490 - Linux kernel eBPF bitwise ops ALU32 bounds tracking
- https://www.zerodayinitiative.com/advisories/ZDI-21-606/
- https://www.zerodayinitiative.com/advisories/ZDI-21-606/
Modified: 2024-11-21
CVE-2021-3491
The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d1f82808877bb10d3deee7cf3374a4eb3fb582db
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d1f82808877bb10d3deee7cf3374a4eb3fb582db
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://security.netapp.com/advisory/ntap-20210716-0004/
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4949-1
- https://ubuntu.com/security/notices/USN-4950-1
- https://ubuntu.com/security/notices/USN-4950-1
- [oss-security] CVE-2021-3491 - Linux kernel io_uring PROVIDE_BUFFERS MAX_RW_COUNT bypass
- [oss-security] CVE-2021-3491 - Linux kernel io_uring PROVIDE_BUFFERS MAX_RW_COUNT bypass
- https://www.zerodayinitiative.com/advisories/ZDI-21-589/
- https://www.zerodayinitiative.com/advisories/ZDI-21-589/