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Red Hat: CVE-2018-14619: Important: kernel-alt security, bug fix, and enhancement update (RHSA-2018:2948)

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Red Hat: CVE-2018-14619: Important: kernel-alt security, bug fix, and enhancement update (RHSA-2018:2948)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
08/30/2018
Created
03/19/2019
Added
10/31/2018
Modified
03/03/2021

Description

A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.

Solution(s)

  • redhat-upgrade-kernel

References

  • 105200
  • CVE-2018-14619
  • RHSA-2018:2948

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