Vulnerability Report

CVE-2020-35512

Title: Freedesktop Dbus Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2020-35512.

CWE Category CWE-416
Published Date Feb 15, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
0.03%

Vulnerability Summary

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

Impacted Vendors

F
freedesktop 1

Reference Links

https://bugs.gentoo.org/755392 https://bugzilla.redhat.com/show_bug.cgi?id=1909101 https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128 https://security-tracker.debian.org/tracker/CVE-2020-35512 https://bugs.gentoo.org/755392 https://bugzilla.redhat.com/show_bug.cgi?id=1909101 https://gitlab.freedesktop.org/dbus/dbus/-/issues/305#note_829128 https://security-tracker.debian.org/tracker/CVE-2020-35512
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.2
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-35512 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.