SUSE: libpng16 Moderate Buffer Overflow and Over-Read Issues 2025:4533

## This update for libpng16 fixes the following issues: * 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) * 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-2025-65018: Fixed heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read` (bsc#1254160) ## 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: Read the Full Advisory

## This update for libpng16 fixes the following issues: * 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) * 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-2025-65018: Fixed heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read` (bsc#1254160) ## 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: Read the Full Advisory

* bsc#1254157 * bsc#1254158 * bsc#1254159 * bsc#1254160 Cross- * CVE-2025-64505 * CVE-2025-64506 * CVE-2025-64720 * CVE-2025-65018 CVSS scores: * CVE-2025-64505 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2025-64505 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H * CVE-2025-64505 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H * CVE-2025-64506 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2025-64506 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H * CVE-2025-64506 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H * CVE-2025-64720 ( SUSE ): 6.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N Read the Full Advisory

* CVE-2025-64505 ( SUSE ): 6.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-64505 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2025-64505 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

* CVE-2025-64506 ( SUSE ): 6.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-64506 ( SUSE ): 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2025-64506 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

* CVE-2025-64720 ( SUSE ): 6.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Read the Full Advisory