CVE-2021-20285: Buffer Overflow
First published: Thu Mar 11 2021(Updated: )
A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96 that allows attackers to cause a denial of service (SEGV or buffer overflow, and application crash) or possibly have unspecified other impacts via a crafted ELF. Upstream issue: <a href="https://github.com/upx/upx/issues/421">https://github.com/upx/upx/issues/421</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| UPX | =3.96 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20285?
CVE-2021-20285 is a vulnerability found in UPX 3.96 that allows attackers to cause a denial of service or potentially have unspecified impacts via a crafted ELF file.
What is the severity of CVE-2021-20285?
The severity of CVE-2021-20285 is high, with a CVSS score of 6.6.
How does CVE-2021-20285 impact system availability?
CVE-2021-20285 can cause a denial of service (SEGV or buffer overflow and application crash), posing a threat to system availability.
What version of UPX is affected by CVE-2021-20285?
UPX version 3.96 is affected by CVE-2021-20285.
Are there any references available for CVE-2021-20285?
Yes, you can find references for CVE-2021-20285 at the following links: [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi?id=1937787) and [GitHub](https://github.com/upx/upx/issues/421).
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