USN-8362-1: XZ Utils vulnerability

It was discovered that XZ Utils did not properly manage memory when attempting to append data to a decoded index that contained no records. An attacker could possibly use this issue to cause XZ Utils to crash, resulting in a denial of service, or execute arbitrary code...

Advisory ROSA-SA-2026-3313

Component: xz 5.2.9 OS: ROSA-CHROME Unaffected versions: = xz-5.2.9-2 Affected versions: xz-5.2.9-2 CVE-ID: CVE-2026-34743 BDU-ID: None CVE-Crit: Medium CVE-DESCRIPTION: The buffer overflow vulnerability in XZ Utils allows an attacker to cause memory corruption by using the lzmaindexdecoder...

JLSEC-2026-462

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

OESA-2026-1853 xz security update

XZ Utils is free general-purpose data compression software with a high compression ratio. XZ Utils were written for POSIX-like systems, but also work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils. Security Fixes: XZ Utils provide a general-purpose data-compression library...

CVE-2026-34743

A flaw was found in XZ Utils. When the lzmaindexdecoder function processes an empty index, and a subsequent lzmaindexappend operation is performed, insufficient memory is allocated. This can lead to a buffer overflow, potentially causing a denial of service DoS for affected systems...

CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

ALPINE-CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

UBUNTU-CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

CVE-2026-34743

CVE-2026-34743 is linked to a security fix for the xz package in Slackware: the Slackware-15.0 and -current trees received updated xz packages (5.2.13 for i586/x86_64, and 5.8.3 for -current) to address a buffer overflow in lzma_index_append and invalid memory access in --files/--files0. Affected...

CVE-2026-34743 XZ Utils: Buffer overflow in lzma_index_append()

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

CVE-2026-34743 XZ Utils: Buffer overflow in lzma_index_append()

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

EUVD-2026-18505

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the lzmaindexdecoder function when processing an empty index, followed by a call to lzmaindexappend. An attacker can cause a buffer overflow and disrupt service availability by providing a specially crafted...

PT-2025-33103 · Helm · Helm

Name of the Vulnerable Software and Affected Versions: Helm versions prior to 3.18.5 Description: Helm is a package manager for Charts for Kubernetes. An improper validation of type error when parsing Chart.yaml and index.yaml files can lead to a panic. This issue impacts YAML validation where a...