Описание
Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP5)
This update for the Linux Kernel 4.12.14-122_147 fixes one issue.
The following security issue was fixed:
- CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215442).
Список пакетов
SUSE Linux Enterprise Live Patching 12 SP5
kgraft-patch-4_12_14-122_147-default-10-2.2
Ссылки
- Link for SUSE-SU-2023:4847-1
- E-Mail link for SUSE-SU-2023:4847-1
- SUSE Security Ratings
- SUSE Bug 1215442
- SUSE CVE CVE-2023-4622 page
Описание
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.
Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_147-default-10-2.2
Ссылки
- CVE-2023-4622
- SUSE Bug 1215117
- SUSE Bug 1215442
- SUSE Bug 1217531
- SUSE Bug 1219699