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Ubuntu: USN-4512-1 (CVE-2018-7738): util-linux vulnerability

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Ubuntu: USN-4512-1 (CVE-2018-7738): util-linux vulnerability

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
03/06/2018
Created
09/22/2020
Added
09/18/2020
Modified
03/22/2023

Description

In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.

Solution(s)

  • ubuntu-upgrade-util-linux

References

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