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Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package lz4.src  (opens in a new tab)

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EPSS
1.48% (82nd percentile)

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  • Snyk IDSNYK-RHEL10-LZ4SRC-15045005
  • published21 Jan 2026
  • disclosed17 Jul 2019
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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.src package and not the lz4.src 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