CVE Vulnerability

CVE-2020-35512

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

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugs.gentoo.org/755392 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1909101
https://security-tracker.debian.org/tracker/CVE-2020-35512
https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128
Configurations

Configuration 1
Information

Published : 2021-02-15 05:15

Updated : 2021-03-08 09:15

NVD link : CVE-2020-35512

Mitre link : CVE-2020-35512

Products Affected
No products.
CWE
CWE-416