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 wont 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.)
Name | Vendor | Start Version | End Version |
---|---|---|---|
Python | Python | * | 3.8.18 (excluding) |
Python | Python | 3.9.0 (including) | 3.9.18 (excluding) |
Python | Python | 3.10.0 (including) | 3.10.13 (excluding) |
Python | Python | 3.11.0 (including) | 3.11.5 (excluding) |
Red Hat Enterprise Linux 6 Extended Lifecycle Support | RedHat | python-0:2.6.6-70.el6_10 | * |
Red Hat Enterprise Linux 7 | RedHat | python3-0:3.6.8-21.el7_9 | * |
Red Hat Enterprise Linux 7 | RedHat | python-0:2.7.5-94.el7_9 | * |
Red Hat Enterprise Linux 8 | RedHat | python3.11-0:3.11.2-2.el8_8.2 | * |
Red Hat Enterprise Linux 8 | RedHat | python27:2.7-8080020231004233750.392b0bf1 | * |
Red Hat Enterprise Linux 8 | RedHat | python3-0:3.6.8-51.el8_8.2 | * |
Red Hat Enterprise Linux 8 | RedHat | python39:3.9-8080020230922214114.93c2fc2f | * |
Red Hat Enterprise Linux 8 | RedHat | python39-devel:3.9-8080020230922214114.93c2fc2f | * |
Red Hat Enterprise Linux 8 | RedHat | python3-0:3.6.8-51.el8_8.2 | * |
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | python27:2.7-8010020231004234533.208b345f | * |
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | python3-0:3.6.8-15.1.el8_1.2 | * |
Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | python3-0:3.6.8-24.el8_2.2 | * |
Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | python27:2.7-8020020231004234409.c9f5743f | * |
Red Hat Enterprise Linux 8.2 Telecommunications Update Service | RedHat | python3-0:3.6.8-24.el8_2.2 | * |
Red Hat Enterprise Linux 8.2 Telecommunications Update Service | RedHat | python27:2.7-8020020231004234409.c9f5743f | * |
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | RedHat | python3-0:3.6.8-24.el8_2.2 | * |
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | RedHat | python27:2.7-8020020231004234409.c9f5743f | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | python27:2.7-8040020231004234308.7c6da464 | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | python3-0:3.6.8-39.el8_4.3 | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | python39:3.9-8040020230922214438.63cd9eba | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | python27:2.7-8040020231004234308.7c6da464 | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | python3-0:3.6.8-39.el8_4.3 | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | python39:3.9-8040020230922214438.63cd9eba | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | python27:2.7-8040020231004234308.7c6da464 | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | python3-0:3.6.8-39.el8_4.3 | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | python39:3.9-8040020230922214438.63cd9eba | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | python3-0:3.6.8-47.el8_6.2 | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | python27:2.7-8060020231004234102.2aa69ce4 | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | python39:3.9-8060020230922214243.6a631399 | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | python39-devel:3.9-8060020230922214243.6a631399 | * |
Red Hat Enterprise Linux 9 | RedHat | python3.11-0:3.11.2-2.el9_2.2 | * |
Red Hat Enterprise Linux 9 | RedHat | python3.9-0:3.9.16-1.el9_2.2 | * |
Red Hat Enterprise Linux 9 | RedHat | python3.9-0:3.9.16-1.el9_2.2 | * |
Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | python3.9-0:3.9.10-4.el9_0.2 | * |
Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-python38-python-0:3.8.18-2.el7 | * |
Python2.7 | Ubuntu | bionic | * |
Python2.7 | Ubuntu | esm-apps/focal | * |
Python2.7 | Ubuntu | esm-apps/jammy | * |
Python2.7 | Ubuntu | esm-infra/bionic | * |
Python2.7 | Ubuntu | esm-infra/xenial | * |
Python2.7 | Ubuntu | trusty | * |
Python2.7 | Ubuntu | trusty/esm | * |
Python2.7 | Ubuntu | xenial | * |
Python3.10 | Ubuntu | bionic | * |
Python3.10 | Ubuntu | jammy | * |
Python3.10 | Ubuntu | trusty | * |
Python3.10 | Ubuntu | upstream | * |
Python3.10 | Ubuntu | xenial | * |
Python3.11 | Ubuntu | bionic | * |
Python3.11 | Ubuntu | jammy | * |
Python3.11 | Ubuntu | lunar | * |
Python3.11 | Ubuntu | trusty | * |
Python3.11 | Ubuntu | upstream | * |
Python3.11 | Ubuntu | xenial | * |
Python3.12 | Ubuntu | bionic | * |
Python3.12 | Ubuntu | trusty | * |
Python3.12 | Ubuntu | upstream | * |
Python3.12 | Ubuntu | xenial | * |
Python3.4 | Ubuntu | esm-infra-legacy/trusty | * |
Python3.4 | Ubuntu | trusty | * |
Python3.4 | Ubuntu | trusty/esm | * |
Python3.5 | Ubuntu | esm-infra-legacy/trusty | * |
Python3.5 | Ubuntu | esm-infra/xenial | * |
Python3.5 | Ubuntu | trusty | * |
Python3.5 | Ubuntu | trusty/esm | * |
Python3.5 | Ubuntu | xenial | * |
Python3.6 | Ubuntu | bionic | * |
Python3.6 | Ubuntu | esm-infra/bionic | * |
Python3.7 | Ubuntu | bionic | * |
Python3.7 | Ubuntu | esm-apps/bionic | * |
Python3.7 | Ubuntu | trusty | * |
Python3.7 | Ubuntu | xenial | * |
Python3.8 | Ubuntu | bionic | * |
Python3.8 | Ubuntu | esm-apps/bionic | * |
Python3.8 | Ubuntu | focal | * |
Python3.9 | Ubuntu | bionic | * |
Python3.9 | Ubuntu | esm-apps/focal | * |
Python3.9 | Ubuntu | trusty | * |
Python3.9 | Ubuntu | upstream | * |
Python3.9 | Ubuntu | xenial | * |