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 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...

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 TIF format

LibTIFF 4.4.0 contains an out-of-bounds write vulnerability in tiffcrop, located at line 368 of libtiff/tifunix.c. This vulnerability is invoked by lines 2903 and 6778 of tools/tiffcrop.c. This allows attackers to cause a denial-of-service attack through a crafted TIF file. For users who compile...

Astra Linux – Vulnerability in TIF format

LibTIFF 4.4.0 contains an out-of-bounds read in tiffcrop at line 3400 of tools/tiffcrop.c, allowing attackers to cause a denial-of-service attack through a crafted TIF file. For users who compile LibTIFF from source code, the fix is available in the commit afaabc3e...

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 TIF format

A out-of-bounds read error in tiffcp in libtiff 4.3.0 allows attackers to cause a denial-of-service attack through a crafted tiff file. For users who compile libtiff from source code, the fix is available in the commit 408976c4...

Astra Linux – Vulnerability in TIF format

LibTIFF 4.4.0 contains an out-of-bounds write vulnerability in tiffcrop, located at line 3502 of tools/tiffcrop.c. This vulnerability allows attackers to cause a denial-of-service attack through a malicious TIF file. For users who compile LibTIFF from source code, the fix is available in the comm...

Astra Linux – Vulnerability in TIF format

LibTIFF 4.4.0 contains an out-of-bounds write vulnerability in tiffcrop, located at line 3724 of tools/tiffcrop.c. This vulnerability allows attackers to cause a denial-of-service attack through a malicious TIF file. For users who compile LibTIFF from source code, the fix is available in the comm...

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...

Astra Linux – Vulnerability in TIF format

A null source pointer passed as an argument to the memcopy function within TIFFFetchStripThing in tifdirread.c in libtiff versions from 3.9.0 to 4.3.0 could lead to a Denial of Service attack through a crafted TIFF file. For users who compile libtiff from source code, this fix is available in the...

Astra Linux – Vulnerability in TIF format

LibTIFF 4.4.0 contains an out-of-bounds write vulnerability in tiffcrop, located at line 3609 of tools/tiffcrop.c. This vulnerability allows attackers to cause a denial-of-service attack through a malicious TIF file. For users who compile LibTIFF from source code, the fix is available in the comm...

Astra Linux – Vulnerability in Tiff

The tiffcrop utility in libtiff has a uint32t underflow, which can lead to out-of-bounds read and write operations. An attacker who provides a crafted file to tiffcrop likely by tricking a user into running tiffcrop with certain parameters could cause a crash or, in some cases, lead to further...