CVE-2022-23034
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
Overview
- CVE ID
- CVE-2022-23034
- Assigner
- security@xen.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-01-25T14:15:09
- Last Modified Date
- 2022-08-19T09:59:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* | 1 | OR | 3.2.0 | 4.13.0 |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/01/25/3 | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202208-23 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5117 | Third Party Advisory |
| https://xenbits.xenproject.org/xsa/advisory-394.txt | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-23034 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23034 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:42:14 | Added to TrackCVE | |||
| 2022-12-06 07:38:48 | 2022-01-25T14:15Z | 2022-01-25T14:15:09 | CVE Published Date | updated |
| 2022-12-06 07:38:48 | 2022-08-19T09:59:00 | CVE Modified Date | updated | |
| 2022-12-06 07:38:48 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 07:38:53 | References | updated |