Vulnerability in Clusterlabs Libqb
CVE-2019-12779
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/ClusterLabs/libqb/issues/338 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, VDB Entry, Third Party Advisory)
- github.com/ClusterLabs/libqb/releases/tag/v1.0.5 (Third Party Advisory, Release Notes)
- github.com/ClusterLabs/libqb/releases/tag/v1.0.4 (Third Party Advisory, Release Notes)
- www.securityfocus.com/bid/108691 (Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3610 (vendor-advisory)
- security.gentoo.org/glsa/202107-03 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-12779?
- CVE-2019-12779 is a high-severity vulnerability in Clusterlabs Libqb, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2019-06-07.
- How severe is CVE-2019-12779?
- High severity. CVSS v3 base score is 7.1 out of 10.