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Red Hat: CVE-2021-33033: Important: kernel security and bug fix update (Multiple Advisories)

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Red Hat: CVE-2021-33033: Important: kernel security and bug fix update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
05/14/2021
Created
07/23/2021
Added
07/22/2021
Modified
07/22/2021

Description

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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