Link Following Affecting keepalived package, versions <2.0.11-r0
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-ALPINE320-KEEPALIVED-7012480
- published23 May 2024
- disclosed8 Nov 2018
Introduced: 8 Nov 2018
CVE-2018-19044 (opens in a new tab)How to fix?
Upgrade Alpine:3.20 keepalived to version 2.0.11-r0 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 Alpine.
See How to fix? for Alpine:3.20 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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19044
- https://security-tracker.debian.org/tracker/CVE-2018-19044
- https://security.gentoo.org/glsa/201903-01
- https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306
- https://github.com/acassen/keepalived/issues/1048
- https://bugzilla.suse.com/show_bug.cgi?id=1015141
- https://access.redhat.com/errata/RHSA-2019:2285
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-19044