| Name | CVE-2023-38898 |
| Description | An issue in Python cpython v.3.7 allows an attacker to obtain sensitive information via the _asyncio._swap_current_task component. NOTE: this is disputed by the vendor because (1) neither 3.7 nor any other release is affected (it is a bug in some 3.12 pre-releases); (2) there are no common scenarios in which an adversary can call _asyncio._swap_current_task but does not already have the ability to call arbitrary functions; and (3) there are no common scenarios in which sensitive information, which is not already accessible to an adversary, becomes accessible through this bug. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python2.7 (PTS) | jessie, jessie (lts) | 2.7.9-2-ds1-1+deb8u12 | fixed |
| stretch (security) | 2.7.13-2+deb9u6 | fixed |
| stretch (lts), stretch | 2.7.13-2+deb9u9 | fixed |
| buster | 2.7.16-2+deb10u1 | fixed |
| buster (security) | 2.7.16-2+deb10u4 | fixed |
| bullseye | 2.7.18-8+deb11u1 | fixed |
| python3.11 (PTS) | bookworm | 3.11.2-6 | fixed |
| trixie | 3.11.8-1 | fixed |
| sid | 3.11.9-1 | fixed |
| python3.12 (PTS) | trixie | 3.12.2-1 | fixed |
| sid | 3.12.3-1 | fixed |
| python3.4 (PTS) | jessie, jessie (lts) | 3.4.2-1+deb8u17 | fixed |
| python3.5 (PTS) | stretch (security) | 3.5.3-1+deb9u5 | fixed |
| stretch (lts), stretch | 3.5.3-1+deb9u9 | fixed |
| python3.7 (PTS) | buster | 3.7.3-2+deb10u3 | fixed |
| buster (security) | 3.7.3-2+deb10u7 | fixed |
| python3.9 (PTS) | bullseye | 3.9.2-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
- python3.11 <not-affected> (Vulnerable code not present)
- python3.10 <not-affected> (Vulnerable code not present)
- python3.9 <not-affected> (Vulnerable code not present)
- python3.7 <not-affected> (Vulnerable code not present)
- python2.7 <not-affected> (Vulnerable code not present)
Introduced in https://github.com/python/cpython/commit/a474e04388c2ef6aca75c26cb70a1b6200235feb (v3.12.0b1)
https://github.com/python/cpython/commit/9e6f8d46150c1a0af09d68ce63c603cf321994aa (v3.12.0b4)
https://github.com/python/cpython/issues/105987
- python3.4 <not-affected> (Vulnerable code not present)
- python3.5 <not-affected> (Vulnerable code not present)