Integer Overflow or Wraparound Affecting lz4-libs package, versions <0:1.8.3-3.el8_4


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.3% (70th percentile)

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  • Snyk IDSNYK-ORACLE8-LZ4LIBS-2587051
  • published10 Apr 2022
  • disclosed2 Jun 2021

Introduced: 2 Jun 2021

CVE-2021-3520  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Oracle:8 lz4-libs to version 0:1.8.3-3.el8_4 or higher.
This issue was patched in ELSA-2021-2575.

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 Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.

CVSS Scores

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