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Mageia LibreOffice Important Buffer Overflow Issues Fix 2026-0259

mageia
Calendar Grey July 18, 2026
Scroller Mageia
Fixes important security issues in LibreOffice for Mageia 10 and 9, addressing various heap buffer overflows.
Security update

Summary

Description: The updated packages fix security vulnerabilities: Heap buffer overflow in DXF polyline import. (CVE-2026-6039) Heap use-after-free in ODF number-format blank-width parsing. (CVE-2026-6040) Heap buffer overflow in EMF+ gradient brush import. (CVE-2026-6045) Stack buffer overflow in PPT presentation import. (CVE-2026-8356) Heap buffer overflow in Calc formula compilation. (CVE-2026-8357) Heap buffer overflow in spreadsheet tracked-changes import. (CVE-2026-8358)

References

- https://bugs.mageia.org/show_bug.cgi?id=35709

- https://lists.debian.org/debian-security-announce/2026/msg00257.html

- https://www.libreoffice.org/security/

- https://www.cve.org/CVERecord?id=CVE-2026-6039

- https://www.cve.org/CVERecord?id=CVE-2026-6040

- https://www.cve.org/CVERecord?id=CVE-2026-6045

- https://www.cve.org/CVERecord?id=CVE-2026-8356

- https://www.cve.org/CVERecord?id=CVE-2026-8357

- https://www.cve.org/CVERecord?id=CVE-2026-8358

Topics%20covered

Topics Covered

security advisory buffer overflow important LibreOffice Mageia heap

Resolution

SRPMS

- 10/core/libreoffice-26.2.4.2-1.mga10

- 9/core/libreoffice-24.2.7.2-1.5.mga9

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 18 Jul 2026
URL: https://advisories.mageia.org/MGASA-2026-0259.html
Type: security
CVE: CVE-2026-6039, CVE-2026-6040, CVE-2026-6045, CVE-2026-8356, CVE-2026-8357, CVE-2026-8358

Topics%20covered

Topics Covered

security advisory buffer overflow important LibreOffice Mageia heap

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