CVE-2021-35515: apache software foundation apache commons compress Excessive Iteration

Vulnerability summary

CVE-2021-35515 is a high (CVSS 7.5) Excessive Iteration vulnerability in apache software foundation apache commons compress. EPSS estimates a 11.57% chance of exploitation in the next 30 days, higher than 95.9% of scored vulnerabilities.

Timeline

1. 13-07-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.

• CWE-834Excessive IterationThe product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.
• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.