CVE-2018-19044

Name: CVE-2018-19044
Creator: NVD / NIST
Published: 2018-11-08T20:29:00.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.50%

Last modified Jun 17, 2026

CVE-2018-19044 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.50%

39.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Keepalived	Keepalived	2.0.8

References

https://access.redhat.com/errata/RHSA-2019:2285
https://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306Patch, Third Party Advisory
https://github.com/acassen/keepalived/issues/1048Exploit, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201903-01Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2285
https://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306Patch, Third Party Advisory
https://github.com/acassen/keepalived/issues/1048Exploit, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201903-01Third Party Advisory

Timeline

Published: Nov 8, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19044?

How severe is CVE-2018-19044?

Severity scoring for CVE-2018-19044 is pending analysis. The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19044?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-19044?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST