CVE-2021-43313: Buffer Overflow
First published: Fri Mar 24 2023(Updated: )
A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf32::invert_pt_dynamic at p_lx_elf.cpp:1688.
Credit: patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| UPX | <4.0.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this heap-based buffer overflow?
The vulnerability ID for this heap-based buffer overflow is CVE-2021-43313.
What is the affected software?
The affected software is Upx Project Upx version up to 4.0.0.
How severe is this vulnerability?
This vulnerability has a severity rating of 7.5 (high).
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-119, CWE-787.
Is there a reference for this vulnerability?
Yes, you can find the reference for this vulnerability at https://github.com/upx/upx/issues/378.
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