ALT-PU-2021-3305-1
Package kernel-image-un-def updated to version 5.14.20-alt1 for branch sisyphus in task 290059.
Closed vulnerabilities
BDU:2021-03902
Уязвимость функции sco_sock_sendmsg() подсистемы HCI ядра операционной системы Linux, позволяющая нарушителю вызвать аварийное завершение системы или повысить свои привилегии
BDU:2023-01273
Уязвимость функции ovl_write_iter() файловой системы overlayfs ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии
Modified: 2024-11-21
CVE-2021-3640
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
- https://bugzilla.redhat.com/show_bug.cgi?id=1980646
- https://bugzilla.redhat.com/show_bug.cgi?id=1980646
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951
- https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951
- https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update
- https://security.netapp.com/advisory/ntap-20220419-0003/
- https://security.netapp.com/advisory/ntap-20220419-0003/
- https://ubuntu.com/security/CVE-2021-3640
- https://ubuntu.com/security/CVE-2021-3640
- DSA-5096
- DSA-5096
- https://www.openwall.com/lists/oss-security/2021/07/22/1
- https://www.openwall.com/lists/oss-security/2021/07/22/1
Modified: 2025-04-23
CVE-2023-1252
A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.