CVE-2019-12779

libqb: Insecure treatment of IPC (temporary) files

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

libqb anterior a la versión 1.0.5 permite a los usuarios locales sobrescribir archivos arbitrarios mediante un ataque de enlace simbólico (symlink attack), porque utiliza nombres de archivo predecibles (bajo /dev/shm y /tmp) sin O_EXCL.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-06-07 CVE Reserved
2019-06-07 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-377: Insecure Temporary File

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/108691	Third Party Advisory
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.4	Release Notes
https://github.com/ClusterLabs/libqb/releases/tag/v1.0.5	Release Notes

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1695948	2024-08-04
https://github.com/ClusterLabs/libqb/issues/338	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00017.html	2021-07-03
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00027.html	2021-07-03
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00031.html	2021-07-03
https://access.redhat.com/errata/RHSA-2019:3610	2021-07-03
https://security.gentoo.org/glsa/202107-03	2021-07-03
https://access.redhat.com/security/cve/CVE-2019-12779	2020-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Clusterlabs Search vendor "Clusterlabs"		Libqb Search vendor "Clusterlabs" for product "Libqb"				< 1.0.5 Search vendor "Clusterlabs" for product "Libqb" and version " < 1.0.5"		-		Affected