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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.8% of scored records. A rank, not a probability.
- NVD base score
- 7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-06-07 19:44Z7 YR AGO
- Last updated
- 2024-08-04 23:32Z2 YR AGO
- Reserved
- 2019-06-07
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 051f409e2e99cfce2e0e6beb244c7bba2b7a7500213f079baa5f4d3c1b333081
05 Affected products
06 References
- github.comhttps://github.com/ClusterLabs/libqb/issues/338
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1695948
- github.comhttps://github.com/ClusterLabs/libqb/releases/tag/v1.0.5
- github.comhttps://github.com/ClusterLabs/libqb/releases/tag/v1.0.4
- www.securityfocus.com108691http://www.securityfocus.com/bid/108691
- lists.opensuse.orgopenSUSE-SU-2019:1718http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html
- lists.opensuse.orgopenSUSE-SU-2019:1752http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html
- lists.opensuse.orgopenSUSE-SU-2019:1891http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html
- access.redhat.comRHSA-2019:3610https://access.redhat.com/errata/RHSA-2019:3610
- security.gentoo.orgGLSA-202107-03https://security.gentoo.org/glsa/202107-03
07 Fixed in
Debian 12
- libqb Fixed in 1.0.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libqb Fixed in 1.0.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libqb Fixed in 1.0.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- libqb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- libqb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- libqb No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.