Kernel privilege escalation via driver use-after-free
Published Nov 13, 2024 · Updated Nov 15, 2024
A use-after-free in the PowerVR GPU driver on Android SoC devices allows local users to escalate privileges in the kernel. DevmemXIntMapPages in devicemem_server.c uses memory after it is freed because of a logic error whose specific control flow is not public. A local user needs no additional execution privileges or user interaction to obtain kernel privileges.
Summary
What happened
A use-after-free in the PowerVR GPU driver on Android SoC devices allows local users to escalate privileges in the kernel. DevmemXIntMapPages in devicemem_server.c uses memory after it is freed because of a logic error whose specific control flow is not public. A local user needs no additional execution privileges or user interaction to obtain kernel privileges.
The record
- CVE
- CVE-2024-34747
- Published
- Nov 13, 2024
- Updated
- Nov 15, 2024
- Vendor
- Imagination Technologies
- Product
- PowerVR GPU
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 13, 2024CVE publishedPublication date reported by the CVE source.
- Nov 15, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <*
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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