Description
When using the "configparser" module to write configuration files containing multi-line text values with carriage return characters (\r) the resulting file could be injected with unexpected keys and values if the attacker controls the written value.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
Passive
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- Python Software Foundation / CPython0 – 3.15.0
References
- PATCHhttps://github.com/python/cpython/pull/151559
- MISChttps://mail.python.org/archives/list/security-announce@python.org/thread/CV4NE6AFCRJL7XQOHX7J5TSDHUWVWGJS/
- MISChttps://github.com/python/cpython/issues/143927
- PATCHhttps://github.com/python/cpython/commit/5858e42c539dac8394636a6e9b30472b8994851f
- PATCHhttps://github.com/python/cpython/commit/0adb386f6e68eb2e73d32e19f235d012df009528
- PATCHhttps://github.com/python/cpython/commit/71f2e02a52d47417a6fd69f456346cd8aa7aca98
- PATCHhttps://github.com/python/cpython/commit/aaf850fd333cd89e9aada03d92aaa788a6cb1bb8