email BytesGenerator header injection due to unquoted newlines
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6epss 0.5%
exploitation probability
0.5%top 55% of all CVEs
observed exploitation
nono source reports it
The
email module, specifically the "BytesGenerator" class, didn’t properly quote newlines for email headers when
serializing an email message allowing for header injection when an email
is serialized. This is only applicable if using "LiteralHeader" writing headers that don't respect email folding rules, the new behavior will reject the incorrectly folded headers in "BytesGenerator".
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
Python Software Foundation · CPythonReferences
https://cve.org/CVERecord?id=CVE-2024-6923https://github.com/python/cpython/commit/052e55e7d44718fe46cbba0ca995cb8fcc359413https://github.com/python/cpython/commit/0a925ab591c45d6638f37b5e57796f36fa0e56d8https://github.com/python/cpython/commit/7877fe424415bc4a13045e62a90a7277413d8cb9https://github.com/python/cpython/commit/842ce19a0c0b58d61591e8f6a708c38db1fb94e4https://github.com/python/cpython/commit/8cdf6204f4ae821f32993f8fc6bad0d318f95f36https://github.com/python/cpython/commit/e417f05ad77a4c30ddc07f99e90fc0cef43e831ahttps://github.com/python/cpython/issues/144125https://github.com/python/cpython/pull/144126https://mail.python.org/archives/list/security-announce@python.org/thread/6ZZULGALJTITEAGEXLDJE2C6FORDXPBT/