CVE-2023-52436: f2fs: explicitly null-terminate the xattr list

CVE-2023-52436 PUBLISHED CVSS 7.8 HIGH

f2fs: explicitly null-terminate the xattr list

Reported by linux · Published February 20, 2024

In the Linux kernel, the following vulnerability has been resolved: f2fs: explicitly null-terminate the xattr list When setting an xattr, explicitly null-terminate the xattr list. This eliminates the fragile assumption that the unused xattr space is always zeroed.

Risk scores

CVSS 3.1

7.8

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

Affected products

Vendor	Product	Versions
Linux	Linux	af48b85b8cd3fbb12c9b6759c16db6d69c0b03da, af48b85b8cd3fbb12c9b6759c16db6d69c0b03da, af48b85b8cd3fbb12c9b6759c16db6d69c0b03da
Linux	Linux	3.8, 0, 4.19.306
linux	linux_kernel	3.8, 3.8, 3.8
Linux	Linux	, , *

Timeline

Feb 20, 2024 CVE Published
Feb 21, 2024 EPSS Score (30 in total, the first dated here)
Oct 5, 2024 Coalition ESS Score (7 in total, the first dated here)
Jan 25, 2026 Security Advisory (89 in total, the first dated here)
Mar 30, 2026 Distribution Patch (86 in total, the first dated here)
Aug 15, 2026 CVE Updated

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References

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