SB2024090377 - Denial of service in Python
Published: September 3, 2024 Updated: September 9, 2024
Security Bulletin ID
SB2024090377
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect Regular Expression (CVE-ID: CVE-2024-6232)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of .tar archives when processing it with regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Remediation
Install update from vendor's website.
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