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

Affected: Python Software Foundation CPython, python cpython

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.

USN-7015-1 — python3.10, python3.12, python3.8 vulnerabilities

Affected: Ubuntu:20.04:LTS: python3.8, Ubuntu:22.04:LTS: python3.10, Ubuntu:24.04:LTS: python3.12

It was discovered that the Python email module incorrectly parsed email addresses that contain special characters. A remote attacker could possibly use this issue to bypass certain protection mechanisms. (CVE-2023-27043)

It was discovered that Python allowed excessive backtracking while parsing certain tarfile headers. A remote attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. (CVE-2024-6232)

It was discovered that the Python email module incorrectly quoted newlines for email headers. A remote attacker could possibly use this issue to perform header injection. (CVE-2024-6923)

It was discovered that the Python http.cookies module incorrectly handled parsing cookies that contained backslashes for quoted characters. A remote attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. (CVE-2024-7592)

It was discovered that the Python zipfile module incorrectly handled certain malformed zip files. A remote attacker could possibly use this issue to cause Python to stop responding, resulting in a denial of service. (CVE-2024-8088)

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

USN-7015-1 — python3.10, python3.12, python3.8 vulnerabilities