CVE-2021-45469

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory debian.org Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.kernel.org/show_bug.cgi?id=215235 issue tracking patch vendor advisory exploit
https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=dev&id=5598b24efaf4892741c798b425d543e4bed357a1 exploit patch vendor advisory
http://www.openwall.com/lists/oss-security/2021/12/25/1 third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QG7XV2WXKMSMKIQKIBG5LW3Y3GXEWG5Q/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AK2C4A43BZSWATZWFUHHHUQF3HPIALNP/ vendor advisory
https://security.netapp.com/advisory/ntap-20220114-0003/ third party advisory
https://www.debian.org/security/2022/dsa-5050 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html third party advisory mailing list
https://www.debian.org/security/2022/dsa-5096 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-45469?
CVE-2021-45469 has been scored as a high severity vulnerability.
How to fix CVE-2021-45469?
To fix CVE-2021-45469, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-45469 being actively exploited in the wild?
It is possible that CVE-2021-45469 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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