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Mageia 9 Expat Important Buffer Overflow Vulnerability MGASA-2026-0031

mageia
Calendar Grey February 4, 2026
Dist Mageia Esm H88
Updated expat packages addressing critical issues fixed for Mageia 9, preserving security and stability for users.
MGASA-2026-0031 - Updated expat packages fix security vulnerabilities

Summary

Description: In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data. (CVE-2026-24515) In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation. (CVE-2026-25210)

References

- https://bugs.mageia.org/show_bug.cgi?id=35089

- https://www.openwall.com/lists/oss-security/2026/01/31/1

- https://www.cve.org/CVERecord?id=CVE-2026-24515

- https://www.cve.org/CVERecord?id=CVE-2026-25210

Topics%20covered

Topics Covered

security advisory buffer overflow important expat Mageia xml handler

Resolution

SRPMS

- 9/core/expat-2.7.4-1.mga9

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 04 Feb 2026
URL: https://advisories.mageia.org/MGASA-2026-0031.html
Type: security
CVE: CVE-2026-24515, CVE-2026-25210

Topics%20covered

Topics Covered

security advisory buffer overflow important expat Mageia xml handler

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