Important: compat-libtiff3 security update

The libtiff3 package provides libtiff 3, an older version of libtiff library for manipulating TIFF Tagged Image File Format image format files. This version should be used only if you are unable to use the current version of libtiff. Security Fixes: libtiff: libtiff: Arbitrary code execution or...

ALSA-2026:20585 Important: compat-libtiff3 security update

The libtiff3 package provides libtiff 3, an older version of libtiff library for manipulating TIFF Tagged Image File Format image format files. This version should be used only if you are unable to use the current version of libtiff. Security Fixes: libtiff: libtiff: Arbitrary code execution or...

RHEL 8 : compat-libtiff3 (RHSA-2026:20583)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:20583 advisory. The libtiff3 package provides libtiff 3, an older version of libtiff library for manipulating TIFF Tagged Image File Format image format files. This...

CVE-2026-5755 Denial of service via crafted TIFF file upload

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

CVE-2026-5755

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

EUVD-2026-31427

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

CVE-2026-5755 Denial of service via crafted TIFF file upload

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

CVE-2026-5755

CVE-2026-5755 affects Mattermost releases 11.6.x up to 11.6.0, 11.5.x up to 11.5.2/11.5.3, 11.4.x up to 11.4.4, and 10.11.x up to 10.11.14. The issue arises from failure to validate the TIFF IFD offset in the image header before memory allocation, allowing authenticated users with file upload or ...

RockyLinux 9 : libtiff (RLSA-2025:20801)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:20801 advisory. libtiff: TIFFRasterScanlineSize64 produce too-big size and could cause OOM CVE-2023-52355 libtiff: Segment fault in libtiff in TIFFReadRGBATileExt leadi...

libtiff security update

An update is available for libtiff. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The libtiff packages contain a library of functions for manipulating Tagged...

libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations,...

libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations,...

Important: Red Hat Security Advisory: libtiff security update

An update for libtiff 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 Vulnerabili...

libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations,...

Important: Red Hat Security Advisory: libtiff security update

An update for libtiff 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...

libtiff: libtiff: Arbitrary code execution or denial of service via signed integer overflow in TIFF file processing

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations,...

Astra Linux – Vulnerability in Tiff

Libtiff 4.5.0 is vulnerable to a Buffer Overflow issue through the extractContigSamplesBytes function at /libtiff/tools/tiffcrop.c:3215...

Astra Linux – Vulnerability in TIF format

A vulnerability was discovered in the TIFFReadDirectory function of libtiff before version 4.4.0, which allows attackers to cause a denial of service through a crafted TIFF file...

Astra Linux – Vulnerability in Tiff

LibTIFF is vulnerable to an integer overflow. This flaw allows remote attackers to cause a denial of service application crash or potentially execute arbitrary code through a crafted TIFF image, which triggers a heap-based buffer overflow...

Astra Linux – Vulnerability in Tiff

In libtiff version 4.3.0, the unchecked dereference of a return value can allow attackers to trigger a denial-of-service attack through a crafted TIF file. For users who compile libtiff from source code, this issue has been fixed in the commit f2b656e2...