Red Hat Security Advisory: expat security update
Multiple security vulnerabilities have been identified in the libexpat XML parsing library used in Red Hat Enterprise Linux 9. These include a negative length parsing vulnerability and integer overflow issues. The vulnerabilities have been rated with moderate severity by Red Hat Product Security. Updates addressing these issues are available for Red Hat Enterprise Linux 9 across various architectures including x86_64, aarch64, s390x, and ppc64le. Users are advised to apply the provided security updates to mitigate these vulnerabilities.
AI Analysis
Technical Summary
This advisory covers three security vulnerabilities in the libexpat library: CVE-2024-45490 (negative length parsing vulnerability), CVE-2024-45491 (integer overflow or wraparound), and CVE-2024-45492 (integer overflow). These vulnerabilities affect the XML parsing functionality of libexpat and have been rated as moderate impact by Red Hat. The advisory applies to Red Hat Enterprise Linux 9 and its variants across multiple architectures. Red Hat has released updated packages to address these issues, and detailed patch instructions are available in the vendor advisory.
Potential Impact
The vulnerabilities could potentially lead to incorrect processing of XML data due to negative length parsing and integer overflow conditions. While the exact impact is not detailed, Red Hat rates the security impact as moderate, indicating a potential risk of denial of service or other unintended behavior when processing malicious XML inputs.
Mitigation Recommendations
Red Hat has released updated libexpat packages for Red Hat Enterprise Linux 9 that address these vulnerabilities. Users should apply the security updates as described in the Red Hat advisory RHSA-2024:6754 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patches.
Red Hat Security Advisory: expat security update
Description
Multiple security vulnerabilities have been identified in the libexpat XML parsing library used in Red Hat Enterprise Linux 9. These include a negative length parsing vulnerability and integer overflow issues. The vulnerabilities have been rated with moderate severity by Red Hat Product Security. Updates addressing these issues are available for Red Hat Enterprise Linux 9 across various architectures including x86_64, aarch64, s390x, and ppc64le. Users are advised to apply the provided security updates to mitigate these vulnerabilities.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers three security vulnerabilities in the libexpat library: CVE-2024-45490 (negative length parsing vulnerability), CVE-2024-45491 (integer overflow or wraparound), and CVE-2024-45492 (integer overflow). These vulnerabilities affect the XML parsing functionality of libexpat and have been rated as moderate impact by Red Hat. The advisory applies to Red Hat Enterprise Linux 9 and its variants across multiple architectures. Red Hat has released updated packages to address these issues, and detailed patch instructions are available in the vendor advisory.
Potential Impact
The vulnerabilities could potentially lead to incorrect processing of XML data due to negative length parsing and integer overflow conditions. While the exact impact is not detailed, Red Hat rates the security impact as moderate, indicating a potential risk of denial of service or other unintended behavior when processing malicious XML inputs.
Mitigation Recommendations
Red Hat has released updated libexpat packages for Red Hat Enterprise Linux 9 that address these vulnerabilities. Users should apply the security updates as described in the Red Hat advisory RHSA-2024:6754 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:6754
- Cve Count
- 3
- Additional Cves
- ["CVE-2024-45491","CVE-2024-45492"]
Threat ID: 6a1f4e9fe29bf47b500871ea
Added to database: 06/02/2026, 21:43:59 UTC
Last enriched: 08/21/2026, 16:20:13 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 94
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