CVE-2018-7738 Affecting libblkid-devel-static package, versions <2.33.2-150100.4.40.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Nov 2023
- disclosed21 Nov 2023
Introduced: 21 Nov 2023
CVE-2018-7738 (opens in a new tab)How to fix?
Upgrade SLES:15.2 libblkid-devel-static to version 2.33.2-150100.4.40.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libblkid-devel-static package and not the libblkid-devel-static package as distributed by SLES.
See How to fix? for SLES:15.2 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2018-7738.html
- https://bugzilla.suse.com/1080740
- https://bugzilla.suse.com/1084300
- https://bugzilla.suse.com/1213865
- http://www.securityfocus.com/bid/103367
- https://bugs.debian.org/892179
- https://github.com/karelzak/util-linux/commit/75f03badd7ed9f1dd951863d75e756883d3acc55
- https://github.com/karelzak/util-linux/issues/539
- https://security.netapp.com/advisory/ntap-20241213-0002/
- https://usn.ubuntu.com/4512-1/
- https://www.debian.org/security/2018/dsa-4134