What’s Vulnerable › Vulnerabilities

CVE-2018-19044

• Severity: medium (CVSS 4.7 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-11-08 · updated 2026-06-17
• Weakness: CWE-59

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.

Affected products

• Keepalived: 2.0.8

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
• 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

Get alerted when CVE-2018-19044 or the next vulnerability affects your stack