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CVE-2020-35512

Published: Feb 15, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-416
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.3%
Top 75.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A use-after-free flaw was found in D-Bus Development branch <= 1.13.16, dbus-1.12.x stable branch <= 1.12.18, and dbus-1.10.x and older branches <= 1.10.30 when a system has multiple usernames sharing the same UID. When a set of policy rules references these usernames, D-Bus may free some memory in the heap, which is still used by data structures necessary for the other usernames sharing the UID, possibly leading to a crash or other undefined behaviors

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

dbusfreedesktopOSS Libraries
D-Bus Development branchn/a
dbus-1.12.x stable branchn/a
dbus-1.10.x and older branches (EOL)n/a
freedesktoposs-projectOSS Librariesaka freedesktop.org

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugs.gentoo.org/755392
bugs.gentoo.org
https://bugzilla.redhat.com/show_bug.cgi?id=1909101
bugzilla.redhat.com
https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128
gitlab.freedesktop.org
and 1 more references View all →

Timeline

Published
Feb 15, 2021
Last Updated
Nov 21, 2024

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