AlmaLinux 9.2 [TuxCare] Security Update: libtiff / libtiff-devel / libtiff-static / libtiff-tools Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1744116383)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1744116383 advisory. - An issue was discovered in function TIFFReadDirectory libtiff before 4.4.0 allows attackers to cause a denial of service via craft...

pypdf's LZWDecode streams be manipulated to exhaust RAM

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter.This is a follow up to GHSA-jfx9-29x2-rv3j to align the default limit with the one for zlib...

PYSEC-2026-1832 pypdf's LZWDecode streams be manipulated to exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This is a follow up to GHSA-jfx9-29x2-rv3j to align the default limit with the one for zlib. Patche...

Muhammara has a NULL pointer dereference in LZWDecode filter when DecodeParms omits EarlyChange key

Summary A NULL pointer dereference vulnerability exists in PDFParser::CreateFilterForStream when processing a PDF stream with /Filter /LZWDecode and a /DecodeParms dictionary that does not contain the EarlyChange key. This causes an access violation 0xC0000005 and crashes the process. Affected...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.3.0-py3-none-any.whl

Summary IBM Watson Discovery Cartridge affected by vulnerability in pypdf-6.3.0-py3-none-any.whl Vulnerability Details CVEID:CVE-2025-66019 DESCRIPTION: pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which...

Denial-of-service (DoS)

pypdf is vulnerable to Denial-of-service DoS. The vulnerability is due to improper handling of the LZWDecode filter while parsing a PDF page content stream, which allows an attacker to craft a malicious PDF that triggers excessive memory usage...

SUSE CVE-2025-66019

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019: Uncontrolled Resource Consumption

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019 pypdf manipulated LZWDecode streams can exhaust RAM

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

EUVD-2025-199665

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019

CVE-2025-66019 affects the Python PDF library pypdf up to version 6.3.x. Reporter data from multiple sources state that parsing a page content stream using the LZWDecode filter can cause memory usage to balloon to as much as 1 GB per stream, leading to potential denial of service on affected pars...

CVE-2025-66019 pypdf manipulated LZWDecode streams can exhaust RAM

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

CVE-2025-66019

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This issue has been patch...

JLSEC-2025-270 LibTIFF master branch has an out-of-bounds read in LZWDecode in `libtiff/tif_lzw.c:619`, allowing...

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tiflzw.c:619, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa...

JLSEC-2025-271 LibTIFF master branch has an out-of-bounds read in LZWDecode in `libtiff/tif_lzw.c:624`, allowing...

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tiflzw.c:624, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa...

PT-2025-55461

A NULL pointer dereference flaw was found in Libtiff's LZWDecode function in the libtiff/tif lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or...

PT-2025-55428

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif lzw.c:619, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa...

PT-2025-55429

LibTIFF master branch has an out-of-bounds read in LZWDecode in libtiff/tif lzw.c:624, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit b4e79bfa...

GHSA-M449-CWJH-6PW7 pypdf's LZWDecode streams be manipulated to exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to a memory usage of up to 1 GB per stream. This requires parsing the content stream of a page using the LZWDecode filter. This is a follow up to GHSA-jfx9-29x2-rv3j to align the default limit with the one for zlib. Patche...