SUSE-SU-2023:3708-1

Описание

An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly, there is a brief window where the SSLSocket instance will detect the socket as "not connected" and won't initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not be authenticated if the server-side TLS peer is expecting client certificate authentication, and is indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path requires that the connection be closed on initialization of the SSLSocket.)

Затронутые продукты

Ссылки

• https://www.suse.com/security/cve/CVE-2023-40217.html
  CVE-2023-40217
• https://bugzilla.suse.com/1214692
  SUSE Bug 1214692
• https://bugzilla.suse.com/1217524
  SUSE Bug 1217524
• https://bugzilla.suse.com/1218319
  SUSE Bug 1218319
• https://bugzilla.suse.com/1218476
  SUSE Bug 1218476
• https://bugzilla.suse.com/1218965
  SUSE Bug 1218965
• https://bugzilla.suse.com/1219472
  SUSE Bug 1219472
• https://bugzilla.suse.com/1219713
  SUSE Bug 1219713
• https://bugzilla.suse.com/1221582
  SUSE Bug 1221582
• https://bugzilla.suse.com/1224883
  SUSE Bug 1224883