CVE-2020-35512
CVSS V2 High 7.2
CVSS V3 High 7.8
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
Overview
- CVE ID
- CVE-2020-35512
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2021-02-15T17:15:12
- Last Modified Date
- 2021-03-08T21:15:16
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:d-bus_project:d-bus:1.12.20:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-35512 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35512 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:20:41 | Added to TrackCVE | |||
| 2022-12-05 22:07:55 | 2021-02-15T17:15Z | 2021-02-15T17:15:12 | CVE Published Date | updated |
| 2022-12-05 22:07:55 | 2021-03-08T21:15:16 | CVE Modified Date | updated | |
| 2022-12-05 22:07:55 | Modified | Vulnerability Status | updated |