VulnerabilityModified
CVE-2018-19044
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.
MEDIUM 4.7EPSS 0.50%
Does this matter?
Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 4.7 MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- keepalived/keepalived
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.