CVE-2024-3219

Description

The “socket” module provides a pure-Python fallback to the socket.socketpair() function for platforms that don’t support AF_UNIX, such as Windows. This pure-Python implementation uses AF_INET or AF_INET6 to create a local connected pair of sockets. The connection between the two sockets was not verified before passing the two sockets back to the user, which leaves the server socket vulnerable to a connection race from a malicious local peer. Platforms that support AF_UNIX such as Linux and macOS are not affected by this vulnerability. Versions prior to CPython 3.5 are not affected due to the vulnerable API not being included.

Gravité et risque d'exploitation

CVE-2024-3219 obtient un score CVSS de 5.1/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.25 %, ce qui la place devant 15.0 % des CVE référencées.

Que faire ?

• Vérifiez si CPython (versions 3.9.0, <3.10.15, 3.13.0a1, 3.11.0, <3.9.20, <3.12.5, <3.8.20, 3.12.0, 0, <3.13.0rc1, 3.10.0, <3.11.10) est présent sur votre parc.
• Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
• À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
• Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

• https://github.com/python/cpython/pull/122134
• https://github.com/python/cpython/issues/122133
• https://mail.python.org/archives/list/security-announce@python.org/thread/WYKDQWIERRE2ICIYMSVRZJO33GSCWU2B/
• http://www.openwall.com/lists/oss-security/2024/07/29/3
• https://github.com/python/cpython/commit/06fa244666ec6335a3b9bf2367e31b42b9a89b20
• https://github.com/python/cpython/commit/0b65c8bf5367625673eafb92f85046a1b31259f2
• https://github.com/python/cpython/commit/220e31adeaaa8436c9ff234cba1398bc49e2bb6c
• https://github.com/python/cpython/commit/5f90abaa786f994db3907fc31e2ee00ea2cf0929
• https://github.com/python/cpython/commit/b252317956b7fc035bb3774ef6a177e227f9fc54
• https://github.com/python/cpython/commit/2621a8a40ba4b2c68ca564671b7daa5da80a4508
• https://github.com/python/cpython/commit/5df322e91a40909e6904bbdbc0c3a6b6a9eead39
• https://github.com/python/cpython/commit/c21a36112a0028d7ac3cf8f480e0dc88dba5922c
• https://github.com/python/cpython/commit/f071f01b7b7e19d7d6b3a4b0ec62f820ecb14660
• https://github.com/python/cpython/commit/31302f5fc24eecd693f0c8aaba7c2840b09b594d
• https://github.com/python/cpython/commit/3f5d9d12c74787fbf3f5891835c85cc15526c86d
• https://github.com/python/cpython/commit/c5655aa6ad120d2ed7f255bebd6e8b71a9c07dde
• https://github.com/python/cpython/commit/e319f774f9e766a2b92949444a2d46081df3363a
• https://github.com/python/cpython/commit/78df1043dbdce5c989600616f9f87b4ee72944e5