CVE-2024-23716: Android Device Memory Server Use-After-Free Vulnerability
Summary
CVE-2024-23716: In DevmemIntPFNotify of devicemem_server.c, there is a possible use-after-free due to a race condition. Affects :unknown: versions >= SoCVersion:0, < SoCVersion:2024-09-05. Fixed in SoCVersion:2024-09-05. How to fix ↓
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Background
The Android device memory server is a critical component of the Android operating system, responsible for managing device memory and ensuring efficient resource allocation. It plays a vital role in the performance and stability of Android devices. However, this component is susceptible to vulnerabilities that can lead to security risks, such as privilege escalation.
Vulnerability Detail
In the devicemem_server.c file, the function DevmemIntPFNotify contains a use-after-free vulnerability caused by a race condition. This flaw allows an attacker to exploit the vulnerability to escalate privileges locally within the kernel without needing additional execution privileges. The vulnerability is particularly concerning as it can be exploited without user interaction, making it a significant security risk.
How To Fix
Minimum fixed version
SoCVersion:2024-09-05
This is the first release that contains the fix.
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Workaround
Currently, there are no specific workarounds available for this vulnerability. The best course of action is to apply the patch as soon as it becomes available.
Conclusion
CVE-2024-23716 represents a significant security vulnerability in the Android device memory server, allowing for local privilege escalation due to a use-after-free condition. Users are strongly advised to update their systems to the latest patched version to mitigate the risks associated with this vulnerability.
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FAQ
CVE-2024-23716 is a vulnerability in the Android device memory server that allows for local privilege escalation due to a use-after-free condition.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which allows you to monitor for open-source vulnerabilities without needing to sign up.
The primary risk is local escalation of privilege, which could allow an attacker to gain unauthorized access to system resources and potentially compromise the device's security.
No, user interaction is not needed for exploitation, making this vulnerability particularly dangerous.
If you cannot update your device, consider using security measures such as restricting app permissions and monitoring device activity until a patch is available.
References
Related vulnerabilities
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