Red Hat Security Advisory: libpng security update
Multiple vulnerabilities have been identified in the libpng library used by Red Hat Enterprise Linux 9. 6 Extended Update Support. These include information disclosure and denial of service via integer truncation in the simplified write API (CVE-2026-22801), denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695), and a heap buffer overflow in png_set_quantize (CVE-2026-25646). Red Hat has issued an important security advisory with updates addressing these issues. The vulnerabilities affect various architectures including x86_64 and s390x. No known exploits are reported in the wild. Red Hat provides updated libpng packages to remediate these vulnerabilities.
AI Analysis
Technical Summary
The libpng library in Red Hat Enterprise Linux 9.6 Extended Update Support contains three security vulnerabilities: CVE-2026-22801 involves integer truncation in the simplified write API leading to information disclosure and denial of service; CVE-2026-22695 involves a heap buffer over-read in png_image_finish_read causing denial of service and information disclosure; CVE-2026-25646 is a heap buffer overflow in png_set_quantize. These issues can potentially allow attackers to cause denial of service or leak information when processing PNG images. Red Hat has released updated libpng packages to fix these vulnerabilities as detailed in advisory RHSA-2026:3576.
Potential Impact
Successful exploitation of these vulnerabilities could result in denial of service conditions or information disclosure on affected systems running vulnerable libpng versions. The issues stem from memory handling errors such as integer truncation, heap buffer over-read, and heap buffer overflow. No known exploits are currently reported in the wild. The vulnerabilities affect multiple architectures supported by Red Hat Enterprise Linux 9.6 Extended Update Support.
Mitigation Recommendations
Red Hat has released updated libpng packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.6 Extended Update Support should apply the security update as described in Red Hat advisory RHSA-2026:3576 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. Patch status is confirmed as official-fix by Red Hat Product Security.
Red Hat Security Advisory: libpng security update
Description
Multiple vulnerabilities have been identified in the libpng library used by Red Hat Enterprise Linux 9. 6 Extended Update Support. These include information disclosure and denial of service via integer truncation in the simplified write API (CVE-2026-22801), denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695), and a heap buffer overflow in png_set_quantize (CVE-2026-25646). Red Hat has issued an important security advisory with updates addressing these issues. The vulnerabilities affect various architectures including x86_64 and s390x. No known exploits are reported in the wild. Red Hat provides updated libpng packages to remediate these vulnerabilities.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The libpng library in Red Hat Enterprise Linux 9.6 Extended Update Support contains three security vulnerabilities: CVE-2026-22801 involves integer truncation in the simplified write API leading to information disclosure and denial of service; CVE-2026-22695 involves a heap buffer over-read in png_image_finish_read causing denial of service and information disclosure; CVE-2026-25646 is a heap buffer overflow in png_set_quantize. These issues can potentially allow attackers to cause denial of service or leak information when processing PNG images. Red Hat has released updated libpng packages to fix these vulnerabilities as detailed in advisory RHSA-2026:3576.
Potential Impact
Successful exploitation of these vulnerabilities could result in denial of service conditions or information disclosure on affected systems running vulnerable libpng versions. The issues stem from memory handling errors such as integer truncation, heap buffer over-read, and heap buffer overflow. No known exploits are currently reported in the wild. The vulnerabilities affect multiple architectures supported by Red Hat Enterprise Linux 9.6 Extended Update Support.
Mitigation Recommendations
Red Hat has released updated libpng packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9.6 Extended Update Support should apply the security update as described in Red Hat advisory RHSA-2026:3576 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. Patch status is confirmed as official-fix by Red Hat Product Security.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3576
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22801","CVE-2026-25646"]
- Cvss Version
- null
Threat ID: 6a1f4e86e29bf47b5007ec8a
Added to database: 6/2/2026, 9:43:34 PM
Last enriched: 6/2/2026, 9:57:31 PM
Last updated: 6/3/2026, 5:09:08 AM
Views: 2
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