SB2026020423 - SUSE update for libpng16

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Memory leak (CVE-ID: CVE-2025-28162)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in png_malloc_base() function. A remote attacker can supply a specially crafted image file to the application and force the library to leak memory.

2) Memory leak (CVE-ID: CVE-2025-28164)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in png_create_read_struct() function. A remote attacker can supply a specially crafted image file to the application and force the library to leak memory.

3) Out-of-bounds read (CVE-ID: CVE-2026-22695)

The vulnerability allows a remote attacker to gain access to potentially sensitive information or crash the application.

The vulnerability exists due to a boundary condition within the png_image_finish_read() function when reading 16-bit PNG images with 8-bit output format and non-minimal row stride. A remote attacker can supply a specially crafted PNG image file to the application, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service attack.

Note, the vulnerability exists due to an incomplete fix for #VU118777 (CVE-2025-65018).

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2026/suse-su-20260364-1/