CVE-2021-35516: Uncontrolled Resource Consumption

July 13, 2021 (updated November 7, 2023)

When reading a specially crafted 7Z archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress’ sevenz package.

References

commons.apache.org/proper/commons-compress/security-reports.html
nvd.nist.gov/vuln/detail/CVE-2021-35516

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