5.5

CVE-2022-49343

ext4: avoid cycles in directory h-tree

In the Linux kernel, the following vulnerability has been resolved:

ext4: avoid cycles in directory h-tree

A maliciously corrupted filesystem can contain cycles in the h-tree
stored inside a directory. That can easily lead to the kernel corrupting
tree nodes that were already verified under its hands while doing a node
split and consequently accessing unallocated memory. Fix the problem by
verifying traversed block numbers are unique.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.14.283
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.247
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.198
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.121
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.46
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.14
Linux ≫ Linux Kernel Version >= 5.18 < 5.18.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.194
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3
Patch
https://git.kernel.org/stable/c/3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc
Patch
https://git.kernel.org/stable/c/3ba733f879c2a88910744647e41edeefbc0d92b2
Patch
https://git.kernel.org/stable/c/6084240bfc44bf265ab6ae7d96980469b05be0f1
Patch
https://git.kernel.org/stable/c/b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0
Patch
https://git.kernel.org/stable/c/d5a16a6df2c16eaf4de04948553ef0089dee463f
Patch
https://git.kernel.org/stable/c/e157c8f87e8fac112d6c955e69a60cdb9bc80a60
Patch
https://git.kernel.org/stable/c/ff4cafa51762da3824881a9000ca421d4b78b138
Patch