giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension

A flaw was found in giflib. A remote attacker can exploit a buffer overflow vulnerability in the EGifGCBToExtension function by providing a specially crafted Graphics Control Extension GCE block. This allows overwriting an existing GCE block without proper size validation, leading to a denial of...

OPENSUSE-SU-2026:21076-1 Security update for giflib

This update for giflib fixes the following issue - CVE-2026-26740: heap out-of-bounds read when processing a specially crafted GIF file containing a GCE block with a truncated extension byte count bsc1259836...

SUSE-SU-2026:2666-1 Security update for giflib

This update for giflib fixes the following issue - CVE-2026-26740: heap out-of-bounds read when processing a specially crafted GIF file containing a GCE block with a truncated extension byte count bsc1259836...

OESA-2026-2708 giflib security update

giflib is a library of gif images and provides utilities for processing images. Security Fixes: Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validati...

OESA-2026-2707 giflib security update

giflib is a library of gif images and provides utilities for processing images. Security Fixes: Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validati...

OESA-2026-2706 giflib security update

giflib is a library of gif images and provides utilities for processing images. Security Fixes: Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validati...

Amazon Linux 2023 : giflib, giflib-devel, giflib-utils (ALAS2023-2026-1883)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1883 advisory. Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validati...

CLSA-2026-1779265764 giflib: Fix of CVE-2026-26740

CVE-2026-26740: fix heap OOB write when rewriting truncated GCE in EGifGCBToSavedExtension...

SUSE CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

EUVD-2026-12914

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

DEBIAN-CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

UBUNTU-CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

Giflib 安全漏洞

Giflib is an open-source library and utility for processing GIFs in OpenEuler. Version 5.2.2 of giflib contains a security vulnerability. This vulnerability arises from EGifGCBToExtension failing to validate the allocated size when overriding existing graphic control extension blocks, which may...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

CVE-2026-26740

giflib 5.2.2 is affected by a Buffer Overflow in the EGifGCBToExtension path, which overwrites an existing Graphic Control Extension block without validating the allocated size. This can lead to a denial of service. The available sources confirm the vulnerability exists in the giflib 5.2.2 releas...

CVE-2026-26740

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...