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Red Hat: CVE-2021-3520: memory corruption due to an integer overflow bug caused by memmove argument (Multiple Advisories)

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Red Hat: CVE-2021-3520: memory corruption due to an integer overflow bug caused by memmove argument (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
06/02/2021
Created
06/30/2021
Added
06/30/2021
Modified
12/15/2023

Description

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.

Solution(s)

  • redhat-upgrade-lz4
  • redhat-upgrade-lz4-debuginfo
  • redhat-upgrade-lz4-debugsource
  • redhat-upgrade-lz4-devel
  • redhat-upgrade-lz4-libs
  • redhat-upgrade-lz4-libs-debuginfo

References

  • CVE-2021-3520
  • RHSA-2021:2575

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