CVE Catalog

CVE-2022-36227

CriticalCVSS 9.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

High risk
2.45%

84th percentile - higher than 84% of all known CVEs

Summary

In libarchive before 3.6.2, the software does not check for an error after calling calloc, which can return a NULL pointer, leading to a NULL pointer dereference.

Risk Assessment

This can cause application crashes or, in rare cases, allow code execution if NULL is an accessible address for privileged code.

Recommendation

Update libarchive to version 3.6.2 or later.

Other vulnerabilities in libarchive

See all
Original NVD description (English source)

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS