RHSA-2026:3577 - Security Advisory

标题

An update for libpng is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

描述

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.

解决方案

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

受影响的产品

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x
• Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le
• Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64

修复

• BZ - 2428824 - CVE-2026-22801 libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API
• BZ - 2428825 - CVE-2026-22695 libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read
• BZ - 2438542 - CVE-2026-25646 libpng: LIBPNG has a heap buffer overflow in png_set_quantize

CVE

• CVE-2026-22695
• CVE-2026-22801
• CVE-2026-25646

参考

• https://access.redhat.com/security/updates/classification/#important