CVE-2025-31115

Published Apr 3, 2025

Last updated 2 days ago

Overview

Description
XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.
Source
security-advisories@github.com
NVD status
Received

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.7
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

Weaknesses

security-advisories@github.com
CWE-366

Social media

Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.

Hype score

1

  1. ๐Ÿšจ CVE-2025-31115 ๐Ÿ”ด HIGH (8.7) ๐Ÿข tukaani-project - xz ๐Ÿ—๏ธ >= 5.3.3alpha, < 5.8.1 ๐Ÿ”— https://t.co/NeFth3KWYw ๐Ÿ”— https://t.co/XUPCoQ59j1 ๐Ÿ”— https://t.co/W44EvfHH0C #CyberCron #VulnAlert #InfoSec https://t.co/al2ETB3L1n

    @cybercronai

    4 Apr 2025

    7 Impressions

    0 Retweets

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  2. CVE-2025-31115: XZ Utils: Threaded decoder frees memory too early https://t.co/imwJoiEvmv At least a crash (denial of service). Heap use after free and writing to an address based on the null pointer plus an offset. Affects versions from 5.3.3alpha to 5.8.0. Fixed in 5.8.1.

    @oss_security

    3 Apr 2025

    3 Impressions

    0 Retweets

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  3. CVE-2025-31115 XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bโ€ฆ https://t.co/Wy62b6xSv7

    @CVEnew

    3 Apr 2025

    103 Impressions

    0 Retweets

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  4. [CVE-2025-31115: HIGH] XZ Utils versions 5.3.3alpha to 5.8.0 had a bug in the multithreaded .xz decoder, leading to crashes due to invalid input. The issue is resolved in version 5.8.1 with a patch available for ...#cybersecurity,#vulnerability https://t.co/oIRRchSFAk https://t.c

    @CveFindCom

    3 Apr 2025

    29 Impressions

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  5. CVE-2025-31115 fixes for new xz vulnerability applied to stable/3.2 and master branches. will be part of the next release, 3.2.3. https://t.co/IEsj14Pw8S

    @midnightbsd

    3 Apr 2025

    47 Impressions

    0 Retweets

    3 Likes

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