Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2025-6021: 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.
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | libxml2 | 0:2.9.1-6.amzn2.5.18 |
| Amazon Linux · 2 | libxml2-debuginfo | 0:2.9.1-6.amzn2.5.18 |
| Amazon Linux · 2 | libxml2-devel | 0:2.9.1-6.amzn2.5.18 |
| Amazon Linux · 2 | libxml2-python | 0:2.9.1-6.amzn2.5.18 |
| Amazon Linux · 2 | libxml2-static | 0:2.9.1-6.amzn2.5.18 |
Vulnerabilities 1
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High 7.5
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.
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2025-6021.html