CVE-2024-6232: Regular-expression DoS when parsing TarFile headers

0.0 CVSS

Description

There is a MEDIUM severity vulnerability affecting CPython.

Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives.

Classification

CVE ID: CVE-2024-6232

CVSS Base Severity: LOW

CVSS Base Score: 0.0

Affected Products

Vendor: Python Software Foundation

Product: CPython

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.11% (probability of being exploited)

EPSS Percentile: 45.44% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/python/cpython/pull/121286
https://github.com/python/cpython/issues/121285
https://mail.python.org/archives/list/security-announce@python.org/thread/JRYFTPRHZRTLMZLWQEUHZSJXNHM4ACTY/
https://github.com/python/cpython/commit/4eaf4891c12589e3c7bdad5f5b076e4c8392dd06
https://github.com/python/cpython/commit/743acbe872485dc18df4d8ab2dc7895187f062c4
https://github.com/python/cpython/commit/d449caf8a179e3b954268b3a88eb9170be3c8fbf
https://github.com/python/cpython/commit/ed3a49ea734ada357ff4442996fd4ae71d253373
https://github.com/python/cpython/commit/7d1f50cd92ff7e10a1c15a8f591dde8a6843a64d
https://github.com/python/cpython/commit/b4225ca91547aa97ed3aca391614afbb255bc877

Timeline