Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-6021US | — | — | ||
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory… | ||||
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references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2025:10630ADVISORY
- https://access.redhat.com/errata/RHSA-2025:10698ADVISORY
- https://access.redhat.com/errata/RHSA-2025:10699ADVISORY
- https://access.redhat.com/errata/RHSA-2025:11580ADVISORY
- https://access.redhat.com/errata/RHSA-2025:11673WEB
- https://access.redhat.com/errata/RHSA-2025:12098ADVISORY
- https://access.redhat.com/errata/RHSA-2025:12099ADVISORY
- https://access.redhat.com/errata/RHSA-2025:12199ADVISORY
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