Overview
- Description
- The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 8.8
- Impact score
- 5.9
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 9
- Impact score
- 10
- Exploitability score
- 8
- Vector string
- AV:N/AC:L/Au:S/C:C/I:C/A:C
Known exploits
Data from CISA
- Vulnerability name
- Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability
- Exploit added on
- Nov 3, 2021
- Exploit action due
- Nov 17, 2021
- Required action
- Apply updates per vendor instructions.
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D4A585CF-8557-4660-BD0B-EAE94D1BF8A2",
"versionEndExcluding": "r29p0",
"versionStartIncluding": "r0p0"
},
{
"criteria": "cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E1FE39A-BD55-4C5F-BBAA-1138340F8329",
"versionEndExcluding": "r31p0",
"versionStartIncluding": "r4p0"
},
{
"criteria": "cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AA218DCD-3CAF-4A64-BE97-F7E4916D9C6F",
"versionEndExcluding": "r29p0",
"versionStartIncluding": "r19p0"
}
],
"operator": "OR"
}
]
}
]