VulnerabilityModified
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.
HIGH 7.1EPSS 0.66%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 7.1 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 0.66% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- clusterlabs/libqb
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html
- http://www.securityfocus.com/bid/108691Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3610
- https://bugzilla.redhat.com/show_bug.cgi?id=1695948Exploit, Patch, Third Party Advisory, VDB Entry
- https://github.com/ClusterLabs/libqb/issues/338Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4Release Notes, Third Party Advisory
- https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202107-03
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html
- http://www.securityfocus.com/bid/108691Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3610
- https://bugzilla.redhat.com/show_bug.cgi?id=1695948Exploit, Patch, Third Party Advisory, VDB Entry
- https://github.com/ClusterLabs/libqb/issues/338Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4Release Notes, Third Party Advisory
- https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202107-03
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.