ALT-BU-2021-3703-1
Branch sisyphus update bulletin.
Package kernel-image-un-def updated to version 5.10.10-alt1 for branch sisyphus in task 265162.
Closed vulnerabilities
BDU:2021-01616
Уязвимость реализации функций dev_map_init_map и sock_map_alloc ядра операционной системы Linux, позволяющая нарушителю вызвать аварийное завершение системы или повысить свои привилегии
BDU:2023-01284
Уязвимость реализации протокола TIPC (Transparent Inter Process Communication) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
Modified: 2024-11-21
CVE-2021-20268
An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1923816
- https://bugzilla.redhat.com/show_bug.cgi?id=1923816
- https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA%40mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444
- https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA%40mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444
- https://security.netapp.com/advisory/ntap-20210409-0006/
- https://security.netapp.com/advisory/ntap-20210409-0006/
Modified: 2024-11-21
CVE-2023-1390
A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
- https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
- https://infosec.exchange/%40_mattata/109427999461122360
- https://infosec.exchange/%40_mattata/109427999461122360
- https://security.netapp.com/advisory/ntap-20230420-0001/
- https://security.netapp.com/advisory/ntap-20230420-0001/
Package kernel-image-std-def updated to version 5.4.92-alt1 for branch sisyphus in task 265158.
Closed vulnerabilities
BDU:2021-04836
Уязвимость ядра операционной системы Linux , связанная с раскрытием защищаемой информации, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
BDU:2023-01284
Уязвимость реализации протокола TIPC (Transparent Inter Process Communication) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
Modified: 2024-11-21
CVE-2021-20239
A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.
Modified: 2024-11-21
CVE-2023-1390
A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
- https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
- https://infosec.exchange/%40_mattata/109427999461122360
- https://infosec.exchange/%40_mattata/109427999461122360
- https://security.netapp.com/advisory/ntap-20230420-0001/
- https://security.netapp.com/advisory/ntap-20230420-0001/