Red Hat Security Advisory: libpng security update
The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files. Security Fix(es): * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801) * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695) * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The libpng library in Red Hat Enterprise Linux 9.2 contains three distinct security vulnerabilities: CVE-2026-22801 involves information disclosure and denial of service caused by integer truncation in the simplified write API; CVE-2026-22695 involves denial of service and information disclosure due to a heap buffer over-read in the png_image_finish_read function; and CVE-2026-25646 is a heap buffer overflow vulnerability in the png_set_quantize function. These vulnerabilities can lead to denial of service conditions and potential information leaks. Red Hat has released updated libpng packages to address these issues in version 9.2.2 and later.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to cause denial of service or gain unauthorized access to information through memory disclosure. The issues affect the libpng library's handling of PNG images, potentially impacting applications that process such files on affected Red Hat Enterprise Linux 9.2 systems.
Mitigation Recommendations
Red Hat has released updated libpng packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 9.2 should apply the security update to upgrade libpng to version 9.2.2 or later as described in Red Hat advisory RHSA-2026:3575. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. No additional mitigations are indicated beyond applying the official patch.
Red Hat Security Advisory: libpng security update
Description
The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files. Security Fix(es): * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801) * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695) * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The libpng library in Red Hat Enterprise Linux 9.2 contains three distinct security vulnerabilities: CVE-2026-22801 involves information disclosure and denial of service caused by integer truncation in the simplified write API; CVE-2026-22695 involves denial of service and information disclosure due to a heap buffer over-read in the png_image_finish_read function; and CVE-2026-25646 is a heap buffer overflow vulnerability in the png_set_quantize function. These vulnerabilities can lead to denial of service conditions and potential information leaks. Red Hat has released updated libpng packages to address these issues in version 9.2.2 and later.
Potential Impact
Successful exploitation of these vulnerabilities could allow an attacker to cause denial of service or gain unauthorized access to information through memory disclosure. The issues affect the libpng library's handling of PNG images, potentially impacting applications that process such files on affected Red Hat Enterprise Linux 9.2 systems.
Mitigation Recommendations
Red Hat has released updated libpng packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 9.2 should apply the security update to upgrade libpng to version 9.2.2 or later as described in Red Hat advisory RHSA-2026:3575. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. No additional mitigations are indicated beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3575
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22801","CVE-2026-25646"]
- State
- PUBLISHED
Threat ID: 6a1f4e86e29bf47b5007ec92
Added to database: 06/02/2026, 21:43:34 UTC
Last enriched: 08/03/2026, 22:35:27 UTC
Last updated: 09/13/2026, 22:01:32 UTC
Views: 69
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