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Oracle Linux: (CVE-2021-4203) (Multiple Advisories): kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2021-4203) (Multiple Advisories): kernel security, bug fix, and enhancement update

Severity
5
CVSS
(AV:N/AC:M/Au:S/C:P/I:N/A:P)
Published
03/25/2022
Created
05/06/2022
Added
05/04/2022
Modified
05/18/2022

Description

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware

References

  • ELSA-2022-1988
  • CVE-2021-4203

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