All errata/p10_e2k/ALT-PU-2026-6286-1
ALT-PU-2026-6286-1

Package update libpng16 in branch p10_e2k

Version1.6.55-alt0.p11.1
Task#0
Published2026-04-14
Max severityHIGH
Severity:

Closed issues (16)

BDU:2025-14613
HIGH7.1

Уязвимость функции png_image_finish_read() библиотеки для работы с растровой графикой в формате PNG libpng, позволяющая нарушителю выполнить произвольный код

Published: 2025-11-24Modified: 2026-05-06
CVSS 3.xHIGH 7.1
CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS 2.0MEDIUM 6.6
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:C/A:C
References
BDU:2025-15390
HIGH7.1

Уязвимость функции png_image_read_composite() библиотеки libpng, позволяющая нарушителю оказать воздействие на конфиденциальность и доступность защищаемой информации

Published: 2025-12-08Modified: 2026-05-06
CVSS 3.xHIGH 7.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CVSS 2.0HIGH 8.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:C
References
BDU:2026-01048
HIGH7.1

Уязвимость функции png_image_read_direct_scaled() библиотеки libpng, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации или вызвать отказ в обслуживании

Published: 2026-01-30Modified: 2026-05-06
CVSS 3.xHIGH 7.1
CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS 2.0MEDIUM 6.6
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:N/A:C
References
BDU:2026-01774
HIGH8.1

Уязвимость функции png_set_quantize() библиотеки для работы с растровой графикой в формате PNG libpng, позволяющая нарушителю выполнить произвольный код

Published: 2026-02-13Modified: 2026-05-06
CVSS 3.xHIGH 8.1
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0HIGH 7.6
CVSS:2.0/AV:N/AC:H/Au:N/C:C/I:C/A:C
References
BDU:2026-02923
MEDIUM6.1

Уязвимость функции png_do_quantize() компонента pngrtran.c библиотеки для работы с растровой графикой в формате PNG Libpng, позволяющая нарушителю получить доступ к конфиденциальным данным, а также вызвать отказ в обслуживании

Published: 2026-03-12Modified: 2026-05-06
CVSS 3.xMEDIUM 6.1
CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CVSS 2.0MEDIUM 5.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:C
References
BDU:2026-02924
MEDIUM6.1

Уязвимость библиотеки для работы с растровой графикой в формате PNG Libpng, связанная с чтением за допустимыми границами буфера данных, позволяющая нарушителю получить доступ к конфиденциальным данным, а также вызвать отказ в обслуживании

Published: 2026-03-12Modified: 2026-05-06
CVSS 3.xMEDIUM 6.1
CVSS:3.x/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CVSS 2.0MEDIUM 5.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:C
References
BDU:2026-02925
HIGH7.1

Уязвимость библиотеки для работы с растровой графикой в формате PNG Libpng, связанная с чтением за допустимыми границами буфера данных, позволяющая нарушителю получить доступ к конфиденциальным данным, а также вызвать отказ в обслуживании

Published: 2026-03-12Modified: 2026-05-06
CVSS 3.xHIGH 7.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:N/A:C
References
BDU:2026-04960
MEDIUM6.8

Уязвимость функций png_write_image_16bit() и png_write_image_8bit() библиотеки для работы с растровой графикой в формате PNG Libpng, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Published: 2026-04-10Modified: 2026-05-06
CVSS 3.xMEDIUM 6.8
CVSS:3.x/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS 2.0MEDIUM 5.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:C
References
CVE-2025-64505
MEDIUM6.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.

Published: 2025-11-25Modified: 2025-11-26
CVSS 3.xMEDIUM 6.1
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
CVE-2025-64506
MEDIUM6.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_write_image_8bit function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale+alpha, RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue has been patched in version 1.6.51.

Published: 2025-11-25Modified: 2025-11-26
CVSS 3.xMEDIUM 6.1
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
CVE-2025-64720
HIGH7.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

Published: 2025-11-25Modified: 2025-11-26
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
CVE-2025-65018
HIGH7.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.

Published: 2025-11-25Modified: 2025-11-26
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
References
CVE-2025-66293
HIGH7.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.

Published: 2025-12-03Modified: 2025-12-16
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
CVE-2026-22695
HIGH7.1

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018. This vulnerability is fixed in 1.6.54.

Published: 2026-01-12Modified: 2026-01-21
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
References
CVE-2026-22801
HIGH7.8

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.

Published: 2026-01-12Modified: 2026-01-21
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2026-25646
HIGH8.3

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.

Published: 2026-02-10Modified: 2026-02-13
CVSS 3.xHIGH 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0HIGH 8.3
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References