Out-of-Bounds Affecting upx package, versions <3.96-r1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Availability
High
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Test your applications- Snyk ID SNYK-ALPINE317-UPX-3144156
- published 29 Apr 2021
- disclosed 26 Mar 2021
Introduced: 26 Mar 2021
CVE-2021-20285 Open this link in a new tabHow to fix?
Upgrade Alpine:3.17 upx to version 3.96-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream upx package and not the upx package as distributed by Alpine:3.17.
See How to fix? for Alpine:3.17 relevant fixed versions and status.
A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw 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. The highest threat from this vulnerability is to system availability.