7.8

CVE-2021-42771: debian debian_linux

Modified
AliasesALPINE-CVE-2021-42771SUSE-SU-2021:3945-1SUSE-SU-2021:4161-1
Published 20-10-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-42771 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55.6% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 5
RHSA-2021:3252RHSA-2021:3254RHSA-2021:4151RHSA-2021:4162RHSA-2021:4201

Timeline

  1. 20-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability 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

7 scores · 5 sources · 3 versions

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.77% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (tenable.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse22 products
  • python-Babel&distro=HPE Helion OpenStack 8< 2.3.4-4.3.1
  • python-Babel&distro=SUSE Enterprise Storage 6< 2.5.1-150000.3.3.1
  • python-Babel&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS< 2.5.1-150000.3.3.1
  • python-Babel&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 2.5.1-150000.3.3.1
  • python-Babel&distro=SUSE Linux Enterprise High Performance Computing 15-ESPOS< 2.5.1-150000.3.3.1
Opensuse5 products
  • python-Babel-doc&distro=openSUSE Leap 15.2< 2.8.0-lp152.2.3.1
  • python-Babel-doc&distro=openSUSE Leap 15.3< 2.8.0-3.3.1
  • python-Babel&distro=openSUSE Leap 15.2< 2.8.0-lp152.2.3.1
  • python-Babel&distro=openSUSE Leap 15.3< 2.8.0-3.3.1
  • python-Babel&distro=openSUSE Tumbleweed< 2.14.0-1.5 | < 2.18.0-1.4 | < 2.9.1-3.1
Debian2 products
  • python-babel< 2.6.0+dfsg.1-1+deb10u1 | < 2.3.4+dfsg.1-2+deb9u1 | < 2.8.0+dfsg.1-7
  • debian_linuxEOL10.0
Alpine1 product
  • py3-babel< 2.9.1-r0
Pocoo1 product
PyPI1 product
  • babel< 2.9.1
Ubuntu1 product
  • python-babel< 1.3+dfsg.1-2ubuntu2+esm1 | < 1.3+dfsg.1-6ubuntu0.1~esm1 | < 2.4.0+dfsg.1-2ubuntu1.1 | < 2.6.0+dfsg.1-1ubuntu2.2

7 vendors · 33 products

References

23 links
Show all 23 references