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openSUSE: libpng16 Important Buffer Overflow Vulnerability RHSA-2025:4494-1

opensuse
Calendar Grey December 19, 2025
Dist Opensuse Esm H88
An important security update for openSUSE's libpng16 addresses five specific vulnerabilities, enhancing system safety.
An update that solves five vulnerabilities can now be installed.

Description

This update for libpng16 fixes the following issues:

* CVE-2025-65018: Fixed heap buffer overflow in `png_combine_row` triggered

via `png_image_finish_read` (bsc#1254160)

* CVE-2025-66293: Fixed LIBPNG out-of-bounds read in

`png_image_read_composite` (bsc#1254480)

* CVE-2025-64506: Fixed heap buffer over-read in `png_write_image_8bit` with

8-bit input and `convert_to_8bit` enabled (bsc#1254158)

* CVE-2025-64720: Fixed buffer overflow in `png_image_read_composite` via

incorrect palette premultiplication (bsc#1254159)

* CVE-2025-64505: Fixed heap buffer over-read in `png_do_quantize` via

malformed palette index (bsc#1254157)

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE heap over-read libpng16

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2025-4494=1 openSUSE-SLE-15.6-2025-4494=1

* Basesystem Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-4494=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-4494=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* libpng16-tools-debuginfo-1.6.40-150600.3.3.1

* libpng16-16-1.6.40-150600.3.3.1

* libpng16-16-debuginfo-1.6.40-150600.3.3.1

* libpng16-compat-devel-1.6.40-150600.3.3.1

* libpng16-devel-1.6.40-150600.3.3.1

* libpng16-tools-1.6.40-150600.3.3.1

* libpng16-debugsource-1.6.40-150600.3.3.1

* openSUSE Leap 15.6 (x86_64)

* libpng16-compat-devel-32bit-1.6.40-150600.3.3.1

* libpng16-devel-32bit-1.6.40-150600.3.3.1

* libpng16-16-32bit-1.6.40-150600.3.3.1

* libpng16-16-32bit-debuginfo-1.6.40-150600.3.3.1

* openSUSE Leap 15.6 (aarch64_ilp32)

* libpng16-16-64bit-debuginfo-1.6.40-150600.3.3.1

* libpng16-compat-devel-64bit-1.6.40-150600.3.3.1

* libpng16-16-64bit-1.6.40-150600.3.3.1

* libpng16-devel-64bit-1.6.40-150600.3.3.1

* Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)

* libpng16-16-1.6.40-150600.3.3.1

* libpng16-16-debuginfo-1.6.40-150600.3.3.1

* libpng16-compat-devel-1.6.40-150600.3.3.1

* libpng16-devel-1.6.40-150600.3.3.1

*...

Read the Full Advisory

References

* bsc#1254157

* bsc#1254158

* bsc#1254159

* bsc#1254160

* bsc#1254480

## References:

* https://www.suse.com/security/cve/CVE-2025-64505.html

* https://www.suse.com/security/cve/CVE-2025-64506.html

* https://www.suse.com/security/cve/CVE-2025-64720.html

* https://www.suse.com/security/cve/CVE-2025-65018.html

* https://www.suse.com/security/cve/CVE-2025-66293.html

* https://bugzilla.suse.com/show_bug.cgi?id=1254157

* https://bugzilla.suse.com/show_bug.cgi?id=1254158

* https://bugzilla.suse.com/show_bug.cgi?id=1254159

* https://bugzilla.suse.com/show_bug.cgi?id=1254160

* https://bugzilla.suse.com/show_bug.cgi?id=1254480

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:4494-1
Release Date: 2025-12-19T13:14:28Z
Affected Products: * Basesystem Module 15-SP6 * Basesystem Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE heap over-read libpng16

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