CVE-2021-3638
CVSS V2 Low 2.1
CVSS V3 Medium 6.5
Description
An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Overview
- CVE ID
- CVE-2021-3638
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-03T23:15:08
- Last Modified Date
- 2023-02-23T20:23:21
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | 1 | OR | 4.0.0 | 6.1.0 |
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: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://bugzilla.redhat.com/show_bug.cgi?id=1979858 | Issue Tracking Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/ | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/ | |
| https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html | Exploit Mailing List Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220407-0003/ | Third Party Advisory |
| https://ubuntu.com/security/CVE-2021-3638 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3638 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3638 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:29:10 | Added to TrackCVE | |||
| 2022-12-06 11:18:01 | 2022-03-03T23:15Z | 2022-03-03T23:15:08 | CVE Published Date | updated |
| 2022-12-06 11:18:01 | 2022-06-03T16:22:14 | CVE Modified Date | updated | |
| 2022-12-06 11:18:01 | Analyzed | Vulnerability Status | updated | |
| 2022-12-14 05:12:50 | 2022-12-14T04:15:10 | CVE Modified Date | updated | |
| 2022-12-14 05:12:50 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-14 05:12:51 | References | updated | ||
| 2022-12-19 04:26:07 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-19 16:13:31 | 2023-01-19T15:15:11 | CVE Modified Date | updated | |
| 2023-01-19 16:13:31 | References | updated | ||
| 2023-02-13 00:13:57 | 2023-02-12T23:41:22 | CVE Modified Date | updated | |
| 2023-02-23 21:13:30 | 2023-02-23T20:23:21 | CVE Modified Date | updated | |
| 2023-02-23 21:13:30 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |