CVE-2021-42771
Published: 20 October 2021
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.
Notes
| Author | Note |
|---|---|
| leosilva | fixed as CVE-2021-20095. But that CVE number was rejected and that new one was assigned to that issue. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
python-babel Launchpad, Ubuntu, Debian |
upstream |
Released
(2.8.0+dfsg.1-7)
|
| xenial |
Not vulnerable
(1.3+dfsg.1-6ubuntu0.1~esm1)
|
|
| bionic |
Not vulnerable
(2.4.0+dfsg.1-2ubuntu1.1)
|
|
| focal |
Not vulnerable
(2.6.0+dfsg.1-1ubuntu2.2)
|
|
| hirsute |
Not vulnerable
(2.8.0+dfsg.1-6ubuntu0.1)
|
|
| impish |
Not vulnerable
(2.8.0+dfsg.1-7)
|
|
| trusty |
Not vulnerable
(1.3+dfsg.1-2ubuntu2+esm1)
|
|
| jammy |
Not vulnerable
|
|
|
Patches: upstream: https://github.com/python-babel/babel/pull/782/commits/3a700b5b8b53606fd98ef8294a56f9510f7290f8 upstream: https://github.com/python-babel/babel/pull/782/commits/5caf717ceca4bd235552362b4fbff88983c75d8c (windows only) |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42771
- https://www.tenable.com/security/research/tra-2021-14
- https://github.com/python-babel/babel/pull/782
- https://lists.debian.org/debian-lts/2021/10/msg00040.html
- https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html
- NVD
- Launchpad
- Debian