| Name | CVE-2021-42771 |
| Description | Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution. |
| 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-2790-1, DSA-5018-1, ELA-646-1 |
| Debian Bugs | 987824 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python-babel (PTS) | jessie, jessie (lts) | 1.3+dfsg.1-5+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 2.3.4+dfsg.1-2+deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 2.6.0+dfsg.1-1+deb10u1 | fixed | |
| bullseye | 2.8.0+dfsg.1-7 | fixed | |
| bookworm | 2.10.3-1 | fixed | |
| sid, trixie | 2.16.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python-babel | source | jessie | 1.3+dfsg.1-5+deb8u1 | ELA-646-1 | ||
| python-babel | source | stretch | 2.3.4+dfsg.1-2+deb9u1 | DLA-2790-1 | ||
| python-babel | source | buster | 2.6.0+dfsg.1-1+deb10u1 | DSA-5018-1 | ||
| python-babel | source | (unstable) | 2.8.0+dfsg.1-7 | 987824 |
https://www.tenable.com/security/research/tra-2021-14
https://github.com/python-babel/babel/pull/782