CVE-2021-3520

lz4: The lz4 packages provide support for LZ4, a very fast, lossless compression algorithm that provides compression speed...

CVE-2021-3520 is fixed in 9 products on 1 platform, first by liblz4-1 0.0~r131-2ubuntu3.1, released April 29, 2021. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
9.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0340
88th percentile

The lz4 packages provide support for LZ4, a very fast, lossless compression algorithm that provides compression speeds of 400 MB/s per core and scales with multicore CPUs. It also features an extremely fast decoder that reaches speeds of multiple GB/s per core and typically reaches RAM speed limits on multicore systems. Security Fix(es): * lz4: memory corruption due to an integer overflow bug caused by memmove argument (CVE-2021-3520) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
liblz4-1 · Ubuntu 18.04.6 LTS (bionic) 0.0~r131-2ubuntu3.1 liblz4-1 0.0~r131-2ubuntu3.1 Apr 29, 2021
liblz4-1 · Ubuntu 20.04 LTS (focal) 1.9.2-2ubuntu0.20.04.1 liblz4-1 1.9.2-2ubuntu0.20.04.1 Apr 29, 2021
liblz4-tool · Ubuntu 18.04.6 LTS (bionic) 0.0~r131-2ubuntu3.1 liblz4-tool 0.0~r131-2ubuntu3.1 Apr 29, 2021
liblz4-tool · Ubuntu 20.04 LTS (focal) 1.9.2-2ubuntu0.20.04.1 liblz4-tool 1.9.2-2ubuntu0.20.04.1 Apr 29, 2021
lz4 · RHEL 8 0:1.8.3-3.el8_4 RHSA-2021:2575 Jun 29, 2021
lz4 · Ubuntu 20.04 LTS (focal) 1.9.2-2ubuntu0.20.04.1 lz4 1.9.2-2ubuntu0.20.04.1 Apr 29, 2021
lz4 · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4 · ol 8 0:1.8.3-3.el8_4 ELSA-2021-2575 Jun 30, 2021
lz4-debuginfo · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4-debugsource · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4-devel · RHEL 8 0:1.8.3-3.el8_4 RHSA-2021:2575 Jun 29, 2021
lz4-devel · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4-devel · ol 8 0:1.8.3-3.el8_4 ELSA-2021-2575 Jun 30, 2021
lz4-libs · RHEL 8 0:1.8.3-3.el8_4 RHSA-2021:2575 Jun 29, 2021
lz4-libs · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4-libs · ol 8 0:1.8.3-3.el8_4 ELSA-2021-2575 Jun 30, 2021
lz4-libs-debuginfo · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023
lz4-static · amzn 2023 1.9.4-1.amzn2023.0.2 ALAS2023-2023-015 Feb 17, 2023

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