Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2018-19044

Published: 8 November 2018

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.

Notes

AuthorNote
mdeslaur
xenial and earlier don't have dbus support

Priority

Low

Cvss 3 Severity Score

4.7

Score breakdown

Status

Package Release Status
keepalived
Launchpad, Ubuntu, Debian
kinetic Not vulnerable
(1:2.0.10-1)
lunar Not vulnerable
(1:2.0.10-1)
bionic Needed

cosmic Ignored
(end of life)
disco Not vulnerable
(1:2.0.10-1)
eoan Not vulnerable
(1:2.0.10-1)
focal Not vulnerable
(1:2.0.10-1)
groovy Not vulnerable
(1:2.0.10-1)
hirsute Not vulnerable
(1:2.0.10-1)
impish Not vulnerable
(1:2.0.10-1)
jammy Not vulnerable
(1:2.0.10-1)
trusty Not vulnerable
(code not present)
upstream
Released (2.0.9)
xenial Not vulnerable
(code not present)
mantic Not vulnerable
(1:2.0.10-1)
Patches:
upstream: https://github.com/acassen/keepalived/commit/04f2d32871bb3b11d7dc024039952f2fe2750306
This vulnerability is mitigated in part by the use of hardlink restrictions in Ubuntu. This vulnerability is mitigated in part by the use of symlink restrictions in Ubuntu.

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N