Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package lz4  (opens in a new tab)


Threat Intelligence

EPSS
10.45% (96th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-LZ4-9892454
  • published29 Apr 2025
  • disclosed17 Jul 2019

Introduced: 17 Jul 2019

CVE-2019-17543  (opens in a new tab)
CWE-122  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lz4 package and not the lz4 package as distributed by RHEL.

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