medium4.7
CVE-2018-19044
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.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Keepalived | Keepalived | Version 2.0.8 |
Weakness classification
References
- NVD record
- CVE.org record
- 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