Important: Red Hat Security Advisory: libpng12 security update

An update for libpng12 is now available for Red Hat Enterprise Linux 7 Extended Lifecycle 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 f...

libpng: LIBPNG has a heap buffer overflow in png_set_quantize

A heap based buffer overflow flaw has been discovered in LibPNG. Prior to version 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize 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 b...

Important: Red Hat Security Advisory: libpng12 security update

An update for libpng12 is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

libpng: LIBPNG has a heap buffer overflow in png_set_quantize

A heap based buffer overflow flaw has been discovered in LibPNG. Prior to version 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize 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 b...

Important: Red Hat Security Advisory: libpng12 security update

An update for libpng12 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

RHEL 8 : libpng12 (RHSA-2026:7033)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:7033 advisory. The libpng12 package provides libpng 1.2, which is the previous version of the libpng library for manipulating PNG Portable Network Graphics image...

RHEL 8 : libpng12 (RHSA-2026:7034)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:7034 advisory. The libpng12 package provides libpng 1.2, which is the previous version of the libpng library for manipulating PNG Portable Network Graphics image...

RHEL 8 : libpng12 (RHSA-2026:7035)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:7035 advisory. The libpng12 package provides libpng 1.2, which is the previous version of the libpng library for manipulating PNG Portable Network Graphics image...

RHEL 8 : libpng12 (RHSA-2026:7036)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:7036 advisory. The libpng12 package provides libpng 1.2, which is the previous version of the libpng library for manipulating PNG Portable Network Graphics image...

libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read

A flaw was found in libpng, a reference library for processing PNG Portable Network Graphics image files. A local attacker could exploit a heap buffer over-read vulnerability in the pngimagefinishread function by tricking a user into processing a specially crafted interlaced 16-bit PNG file with ...

libpng: LIBPNG has a heap buffer overflow in png_set_quantize

A heap based buffer overflow flaw has been discovered in LibPNG. Prior to version 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize 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 b...

libpng: LIBPNG out-of-bounds read in png_image_read_composite

An out of bounds read vulnerability has been discovered in libpng. This vulnerability is in libpng's simplified API allows reading up to 1012 bytes beyond the pngsRGBbase512 array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger...

libpng: libpng: Denial of Service via buffer overflow in pngimage utility

A flaw was found in libpng. A local attacker can exploit a buffer overflow vulnerability in the pngimage utility when processed with AddressSanitizer ASan. This flaw causes memory leaks, leading to high memory usage and ultimately rendering the program unresponsive, resulting in a denial of servi...

libpng: libpng: Denial of Service via buffer overflow in png_create_read_struct() function

A flaw was found in libpng. This buffer overflow vulnerability allows a local attacker to cause a denial of service DoS by exploiting the pngcreatereadstruct function. This can lead to the affected system becoming unresponsive or crashing...

libpng: LIBPNG heap buffer over-read

A buffer over read flaw has been discovered in libpng. A heap buffer over-read vulnerability exists in libpng's pngwriteimage8bit function when processing 8-bit images through the simplified write API with convertto8bit enabled. The vulnerability affects 8-bit grayscale+alpha, RGB/RGBA, and image...

libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API

A flaw was found in libpng, a reference library for PNG Portable Network Graphics raster image files. An integer truncation vulnerability exists in the pngwriteimage16bit and pngwriteimage8bit simplified write API functions. A local attacker could exploit this flaw by providing a negative row...

libpng: LIBPNG buffer overflow

A buffer overflow flaw has been discovered in libpng. An out-of-bounds read vulnerability exists in pngimagereadcomposite when processing palette images with PNGFLAGOPTIMIZEALPHA enabled. The palette compositing code in pnginitreadtransformations incorrectly applies background compositing during...

libpng: LIBPNG heap buffer overflow via malformed palette index

A heap buffer over-read vulnerability exists in libpng's pngdoquantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palettelookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file wit...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: libpng: libpng-1.6.56-1.hum1 aarch64, x8664 libpng-devel-1.6.56-1.hum1 aarch64, x8664 libpng-static-1.6.56-1.hum1 aarch64, x8664 libpng-tools-1.6.56-1.hum1 aarch64, x8664 libpng-1.6.56-1.hum1.src...

libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion

A flaw was found in libpng. A remote attacker could exploit an out-of-bounds read and write vulnerability in the ARM/AArch64 Neon-optimized palette expansion path. This occurs when processing a final partial chunk of 8-bit paletted rows without verifying sufficient input pixels, leading to...