CVE-2021-45469 Information

Description

In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11 there is an out-of-bounds memory access when an inode has an invalid last xattr entry.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev&id=5598b24efaf4892741c798b425d543e4bed357a1 https://bugzilla.kernel.org/show_bug.cgi?id=215235 http://www.openwall.com/lists/oss-security/2021/12/25/1 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AK2C4A43BZSWATZWFUHHHUQF3HPIALNP/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QG7XV2WXKMSMKIQKIBG5LW3Y3GXEWG5Q/ https://security.netapp.com/advisory/ntap-20220114-0003/ https://www.debian.org/security/2022/dsa-5050 https://www.debian.org/security/2022/dsa-5096 https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8