CVE-2019-12779

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.

Category

7.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/ClusterLabs/libqb/issues/338 issue tracking patch exploit third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1695948 patch exploit vdb entry third party advisory
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5 third party advisory release notes
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4 third party advisory release notes
http://www.securityfocus.com/bid/108691 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html vendor advisory
https://access.redhat.com/errata/RHSA-2019:3610 vendor advisory
https://security.gentoo.org/glsa/202107-03 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-12779?
CVE-2019-12779 has been scored as a high severity vulnerability.
How to fix CVE-2019-12779?
To fix CVE-2019-12779, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12779 being actively exploited in the wild?
It is possible that CVE-2019-12779 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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