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 (s...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
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.)
影響パッケージ
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Alpine Linux ALPINE-CVE-2023-40217 python3 修正版: 3.9.18-r0
- Debian DEBIAN-CVE-2023-40217 pypy3 修正版: 7.3.5+dfsg-2+deb11u3
- Ubuntu UBUNTU-CVE-2023-40217 python2.7 修正版: 2.7.6-8ubuntu0.6+esm18
参照URL
- advisory python.org
- web lists.debian.org
- web lists.debian.org
- web mail.python.org
- web security.netapp.com
- web nvd.nist.gov
- web lists.debian.org
- web lists.debian.org