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SUSE-SU-2024:1562-1

Опубликовано: 08 мая 2024
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 40 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-150300_59_147 fixes several issues.

The following security issues were fixed:

  • CVE-2024-0775: Fixed a use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 (bsc#1219079).
  • CVE-2024-26622: Fixed a use-after-free bug in tomoyo_write_control() (bsc#1220828).
  • CVE-2024-1086: Fixed a use-after-free vulnerability related to nft_verdict_init() (bsc#1219435).

Список пакетов

SUSE Linux Enterprise Live Patching 15 SP3
kernel-livepatch-5_3_18-150300_59_147-default-6-150300.2.1

Ссылки

Описание

A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_147-default-6-150300.2.1
Ссылки

Описание

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_147-default-6-150300.2.1
Ссылки

Описание

In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_147-default-6-150300.2.1
Ссылки
Уязвимость SUSE-SU-2024:1562-1