CVE-2021-43313
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability57. percentile0.8%
ProductUpx
PublishedMar 24, 2023
First seenMar 24, 2023
Weakness typeCWE-119Memory buffer bounds error
How to fix
Update
- upx upx4.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| upx upx | v < 4.0.0 | 4.0.0 |
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