CVE-2021-42771

Aliases:GHSA-h4m5-qpfp-3mpvPYSEC-2021-421DEBIAN-CVE-2021-42771ALPINE-CVE-2021-42771
Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 20 Oct 2021, 20:05
Last modified:04 Aug 2024, 03:38

Vulnerability Summary

Overall Risk (default)
medium
41/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.77% LOW
1% probability +0.64%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

20 Oct 2021, 20:05
Published
Vulnerability first disclosed
04 Aug 2024, 03:38
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•HIGH•Score: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.77%• Percentile: 54%

Techniques & Countermeasures

  • CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Affected Systems

  • alpine•py3-babel

    < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0 | < 2.9.1-r0

  • debian•python-babel

    < 2.8.0+dfsg.1-7 | < 2.8.0+dfsg.1-7 | < 2.8.0+dfsg.1-7 | < 2.8.0+dfsg.1-7

  • debian•debian_linux

    10.0

  • pocoo•babel

    < 2.9.1

  • PyPI•babel

    < 2.9.1

References (12)