CVE-2020-29568
CVSS V2 Medium 4.9
CVSS V3 Medium 6.5
Description
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
Overview
- CVE ID
- CVE-2020-29568
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-12-15T17:15:14
- Last Modified Date
- 2022-04-26T16:12:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | 1 | OR | 4.14.1 | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-349.html | Patch Vendor Advisory |
| https://www.debian.org/security/2021/dsa-4843 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202107-30 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-29568 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:26:30 | Added to TrackCVE | |||
| 2022-12-05 18:21:46 | 2020-12-15T17:15Z | 2020-12-15T17:15:14 | CVE Published Date | updated |
| 2022-12-05 18:21:46 | 2022-04-26T16:12:15 | CVE Modified Date | updated | |
| 2022-12-05 18:21:46 | Analyzed | Vulnerability Status | updated |