CVE-2021-29256
Arm Mali GPU Kernel Driver Use-After-Free Vulnerab - [Actively Exploited]
Description
. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.
INFO
Published Date :
May 24, 2021, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 6 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that may allow a non-privileged user to gain root privilege and/or disclose information.
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities; https://nvd.nist.gov/vuln/detail/CVE-2021-29256
Public PoC/Exploit Available at Github
CVE-2021-29256 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-29256.
| URL | Resource |
|---|---|
| https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver | Vendor Advisory |
| https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Arm mali open source drivers
Makefile C Assembly Starlark
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-29256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-29256 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Mar. 22, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:arm:midguard:*:*:*:*:*:*:*:* versions from (including) r28p0-01eac0 from (including) r30p0-01eac0 OR *cpe:2.3:a:arm:midgard:*:*:*:*:*:*:*:* versions from (including) r28p0-01eac0 from (including) r30p0-01eac0 -
Initial Analysis by [email protected]
Jun. 08, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver No Types Assigned https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:arm:bifrost:*:*:*:*:*:*:*:* versions from (including) r16p0-01eac0 up to (excluding) r30p0-01eac0 *cpe:2.3:a:arm:midguard:*:*:*:*:*:*:*:* versions from (including) r28p0-01eac0 up to (including) r30p0-01eac0 *cpe:2.3:a:arm:valhall:*:*:*:*:*:*:*:* versions from (including) r19p0-01eac0 up to (excluding) r30p0-01eac0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-29256 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-29256
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.43 }} -0.05%
score
0.89664
percentile