Link Following Affecting keepalived package, versions <2.0.19-3.3.1
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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Test your applications- Snyk IDSNYK-SLES151-KEEPALIVED-2713690
- published14 Apr 2022
- disclosed24 Mar 2020
Introduced: 24 Mar 2020
CVE-2018-19044 (opens in a new tab)How to fix?
Upgrade SLES:15.1 keepalived to version 2.0.19-3.3.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream keepalived package and not the keepalived package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.
References
- https://www.suse.com/security/cve/CVE-2018-19044.html
- https://bugzilla.suse.com/1015141
- https://access.redhat.com/errata/RHSA-2019:2285
- https://bugzilla.suse.com/show_bug.cgi?id=1015141
- https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306
- https://github.com/acassen/keepalived/issues/1048
- https://security.gentoo.org/glsa/201903-01