CVE-2021-33656
CVSS V2 None
CVSS V3 Medium 6.8
Description
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
Overview
- CVE ID
- CVE-2021-33656
- Assigner
- securities@openeuler.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-07-18T15:15:08
- Last Modified Date
- 2022-10-29T02:52:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:huawei:openeuler:20.03:-:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:huawei:openeuler:20.03:sp1:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:huawei:openeuler:20.03:sp3:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.10.127 | |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- PHYSICAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 0.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/07/19/3 | Mailing List Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html | Mailing List Third Party Advisory |
| https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-33656 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33656 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-07-18 16:00:19 | Added to TrackCVE |