CVE-2021-0577: flv extractor Heap Buffer Overflow Leading to Local Privilege Escalation
Summary
CVE-2021-0577: In flv extractor, there is a possible out of bounds write due to a heap buffer overflow. Affects :unknown: versions >= SoCVersion:0, < SoCVersion:2021-07-05. Fixed in SoCVersion:2021-07-05. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The flv extractor is a component used in Android ecosystems for processing FLV (Flash Video) files. It is designed to extract video and audio streams from FLV files for playback or editing. However, this package has been identified as vulnerable to a heap buffer overflow, which can be exploited to escalate privileges on the local system.
Vulnerability Detail
The vulnerability arises from a heap buffer overflow in the flv extractor, which allows an attacker to write beyond the allocated memory buffer. This can lead to local escalation of privilege, meaning that an attacker could gain higher access rights on the system without needing additional execution privileges. The exploitation of this vulnerability does not require user interaction, making it particularly dangerous.
How To Fix
Minimum fixed version
SoCVersion:2021-07-05
This is the first release that contains the fix.
Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating to the fixed version as soon as possible.
Conclusion
The flv extractor vulnerability (CVE-2021-0577) poses a serious risk due to its potential for local privilege escalation through a heap buffer overflow. Users are strongly advised to update to the patched version to protect their systems from exploitation.
See every vulnerability recorded for :unknown: →
FAQ
CVE-2021-0577 is a vulnerability in the flv extractor that allows for a heap buffer overflow, potentially leading to local privilege escalation.
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 privilege escalation, which could allow an attacker to gain unauthorized access to sensitive system resources or data.
No, user interaction is not needed for exploitation, making it a significant security concern.
While there are no specific workarounds, it is crucial to prioritize updating the package to mitigate the risk associated with this vulnerability.
References
Related vulnerabilities
Recent vulnerabilities recorded for :unknown:.
