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.

CVSS v3.0 7.1 HIGH
CVSS v2.0 6.6 MEDIUM

7.1^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:N/I:C/A:C

Exploitability : 3.9 / Impact : 9.2

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5	Release Notes Third Party Advisory
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4	Release Notes Third Party Advisory
https://github.com/ClusterLabs/libqb/issues/338	Issue Tracking Exploit Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1695948	Exploit Patch Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/108691	Third Party Advisory
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
https://access.redhat.com/errata/RHSA-2019:3610
https://security.gentoo.org/glsa/202107-03

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Configurations

Configuration 1 (hide)

cpe:2.3:a:clusterlabs:libqb:*:*:*:*:*:*:*:*

Information

Published : 2019-06-07 13:29

Updated : 2021-07-02 22:15

NVD link : CVE-2019-12779

Mitre link : CVE-2019-12779

JSON object : View

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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Products Affected

clusterlabs

libqb

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