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

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

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

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

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 (hide)

AND

cpe:2.3:a:freedesktop:dbus:1.12.20:*:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

History

27 Dec 2023, 16:36

Type	Values Removed	Values Added
First Time		Freedesktop Freedesktop dbus
CPE	cpe:2.3:a:d-bus_project:d-bus:1.12.20:::::::*	cpe:2.3:a:freedesktop:dbus:1.12.20:::::::*

Information

Published : 2021-02-15 17:15

Updated : 2023-12-27 16:36

NVD link : CVE-2020-35512

Mitre link : CVE-2020-35512

JSON object : View

Products Affected

linux

linux_kernel

freedesktop

dbus

CWE

CWE-416

Use After Free

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