ALT-PU-2023-1344-1
Package kernel-image-un-def updated to version 6.1.14-alt1 for branch sisyphus in task 315787.
Closed vulnerabilities
Published: 2023-02-21
BDU:2023-02532
Уязвимость функции _copy_from_user() в модуле lib/usercopy.c ядра операционной системы Linux, позволяющая нарушителю раскрыть защищаемую информацию
Severity: MEDIUM (5.5)
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
Published: 2023-05-25
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2023-0459
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47
Severity: MEDIUM (5.5)
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References:
- https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c
- https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c
- https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47
- https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47