CVE-2021-42771

NameCVE-2021-42771
DescriptionBabel.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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2790-1, DSA-5018-1
Debian Bugs987824

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
python-babel (PTS)buster, buster (security)2.6.0+dfsg.1-1+deb10u1fixed
bullseye2.8.0+dfsg.1-7fixed
bookworm, sid2.10.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
python-babelsourcestretch2.3.4+dfsg.1-2+deb9u1DLA-2790-1
python-babelsourcebuster2.6.0+dfsg.1-1+deb10u1DSA-5018-1
python-babelsource(unstable)2.8.0+dfsg.1-7987824

Notes

https://www.tenable.com/security/research/tra-2021-14
https://github.com/python-babel/babel/pull/782
Search for package or bug name: Reporting problems