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CVE-2022-29824

libxml2: integer overflows in xmlBuf and xmlBuffer lead to out-of-bounds write

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Severity

Moderate

Red Hat Product Security

7.4

CVSS 3.1

Review impact separately from score.

Published · May 3, 2022

Updated · September 21, 2026

Description

A flaw was found in the libxml2 library in functions used to manipulate the xmlBuf and the xmlBuffer types. A substantial input causes values to calculate buffer sizes to overflow, resulting in an out-of-bounds write.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Avoid passing large inputs to the libxml2 library.

CVSS / CWE

CVSS 3.1 · 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE-787 · Out-of-bounds Write