Out-of-bounds Write Affecting lz4-libs package, versions <0:1.8.3-5.el8_10


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
10.45% (96th percentile)

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  • Snyk IDSNYK-ALMALINUX8-LZ4LIBS-11426423
  • published3 Aug 2025
  • disclosed15 Jul 2025

Introduced: 15 Jul 2025

CVE-2019-17543  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 lz4-libs to version 0:1.8.3-5.el8_10 or higher.
This issue was patched in ALSA-2025:11035.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lz4-libs package and not the lz4-libs package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk."

References

CVSS Base Scores

version 3.1