CVE-2019-12779 Information

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:H

Reference

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/108691 https://access.redhat.com/errata/RHSA-2019:3610 https://bugzilla.redhat.com/show_bug.cgi?id=1695948 https://github.com/ClusterLabs/libqb/issues/338 https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4 https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.1