In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback.
CVSS Details
- CVSS 3.1 Base Score: 7.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libxml2-debuginfoUpgrade libxml2-staticUpgrade python3-libxml2-debuginfoUpgrade libxml2-develUpgrade libxml2Upgrade libxml2-debugsourceUpgrade python3-libxml2 | Sep 30, 2026 | Sep 5, 2026 |
| Redhat_linux | — | No solution existsUpgrade libxml2-develUpgrade libxml2-debuginfoUpgrade libxml2-debugsourceUpgrade python3-libxml2-debuginfoUpgrade libxml2-staticUpgrade libxml2Upgrade python3-libxml2 | Sep 10, 2026 | Sep 5, 2026 |
| Rocky_linux | — | Upgrade python3-libxml2Upgrade python3-libxml2-debuginfoUpgrade libxml2Upgrade libxml2-debugsourceUpgrade libxml2-debuginfoUpgrade libxml2-develUpgrade libxml2-static | Sep 28, 2026 | Sep 26, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 21, 2026 | Sep 5, 2026 |
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