SB2025042512 - Improper input validatin in Python
Published: April 25, 2025
Security Bulletin ID
SB2025042512
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2025-1795)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input in Lib/email/_header_value_parser.py. A remote attacker can pass specially crafted input to the application and manipulate headers in an email message.
Remediation
Install update from vendor's website.
References
- https://github.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48
- https://github.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593
- https://github.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74
- https://github.com/python/cpython/issues/100884
- https://github.com/python/cpython/pull/100885
- https://github.com/python/cpython/pull/119099
- https://mail.python.org/archives/list/security-announce@python.org/thread/MB62IZMEC3UM6SGHP5LET5JX2Y7H4ZUR/