CVE-2019-12779 — Link Following in Libqb

CWE-59 — Link FollowingCWE-377 — Insecure Temporary File6 documents6 sources
Severity
7.1HIGHNVD
EPSS
0.0%
top 91.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Clusterlabs LibqbDebian Libqb
Timeline
PublishedJun 7
Latest updateMay 24

Description

libqb before 1.0.5 allows local users to overwrite arbitrary files via a symlink attack, because it uses predictable filenames (under /dev/shm and /tmp) without O_EXCL.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages3 packages

▶debiandebian/libqb< libqb 1.0.4-1 (bookworm)
▶NVDclusterlabs/libqb< 1.0.5
▶Debianclusterlabs/libqb< 1.0.4-1+3

Patches

Patch: bugzilla.redhat.com ↗Patch: github.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-wc62-h53h-g8qf: libqb before 1↗2022-05-24
▶
OSV
CVE-2019-12779: libqb before 1↗2019-06-07
▶

📋Vendor Advisories

2
Red Hat
libqb: Insecure treatment of IPC (temporary) files↗2019-04-03
▶
Debian
CVE-2019-12779: libqb - libqb before 1.0.5 allows local users to overwrite arbitrary files via a symlink...↗2019
▶

💬Community

1
Bugzilla
CVE-2019-12779 libqb: Insecure treatment of IPC (temporary) files↗2019-04-03
▶