| Name | CVE-2024-0397 |
| Description | A defect was discovered in the Python “ssl” module where there is a memory race condition with the ssl.SSLContext methods “cert_store_stats()” and “get_ca_certs()”. The race condition can be triggered if the methods are called at the same time as certificates are loaded into the SSLContext, such as during the TLS handshake with a certificate directory configured. This issue is fixed in CPython 3.10.14, 3.11.9, 3.12.3, and 3.13.0a5. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3980-1, DSA-5759-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pypy3 (PTS) | bullseye | 7.3.5+dfsg-2+deb11u2 | vulnerable |
| bullseye (security) | 7.3.5+dfsg-2+deb11u4 | vulnerable |
| bookworm | 7.3.11+dfsg-2+deb12u3 | vulnerable |
| sid, trixie | 7.3.19+dfsg-1 | fixed |
| python2.7 (PTS) | bullseye | 2.7.18-8+deb11u1 | vulnerable |
| python3.11 (PTS) | bookworm | 3.11.2-6+deb12u5 | fixed |
| bookworm (security) | 3.11.2-6+deb12u3 | fixed |
| python3.12 (PTS) | sid | 3.12.9-1 | fixed |
| python3.13 (PTS) | trixie | 3.13.2-2 | fixed |
| sid | 3.13.2-3 | fixed |
| python3.9 (PTS) | bullseye | 3.9.2-1 | vulnerable |
| bullseye (security) | 3.9.2-1+deb11u3 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bookworm] - pypy3 <no-dsa> (Minor issue)
[bullseye] - pypy3 <postponed> (Minor issue, hard-to-trigger race condition)
- python3.13 <not-affected> (Fixed before initial upload to Debian unstable)
[bullseye] - python2.7 <ignored> (Unsupported in Bullseye, only included to build a few applications)
https://github.com/advisories/GHSA-xhf3-pp4q-gxh5
https://github.com/python/cpython/issues/114572
https://github.com/python/cpython/pull/114573
https://github.com/python/cpython/commit/542f3272f56f31ed04e74c40635a913fbc12d286 (v3.12.3)
https://github.com/python/cpython/commit/01c37f1d0714f5822d34063ca7180b595abf589d (v3.11.9)
https://github.com/python/cpython/commit/b228655c227b2ca298a8ffac44d14ce3d22f6faa (3.9-branch)
https://github.com/pypy/pypy/commit/8035017515660b3f19a5aec8b28237b57fc5d6dd (release-pypy3.9-v7.3.16)