CVE-2018-19044

4.7 mediumEPSS 0.5%

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.

Severity

CVSS 3.0

4.7 medium

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-59
Published: 2018-11-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

keepalived:keepalived

References

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

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