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Fencer Intel
medium 4.6

CVE-2013-2027 json

Jython Improper Access Restrictions vulnerability

published 11y ago modified 4mo ago also GHSA-9347-9w64-q5wp , EUVD-2022-3281

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Jython 2.2.1 uses the current umask to set the privileges of the class cache files, which allows local users to bypass intended access restrictions via unspecified vectors.

Patch / fix

  • maven org.python:jython-standalone 2.7.2b3
  • jython Debian 14, Debian 13, Debian 12 2.7.1+repack-1

debian advisories DEBIAN-CVE-2013-2027

  • jython Ubuntu 14.04 LTS 2.5.3-1ubuntu0.1
  • jython Ubuntu 16.04 LTS 2.5.3-9ubuntu0.1

ubuntu advisories UBUNTU-CVE-2013-2027

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2013-2027 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2027 updated cvss 3.7

Jython creates executables class files with wrong permissions

  • Red Hat Enterprise Linux 6 jython, jython-demo, jython-manual, jython-javadoc Red Hat JBoss Enterprise Application Platform 6 jython Red Hat JBoss SOA Platform 4 jython Red Hat JBoss SOA Platform 5 jython
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected packages

ecosystem package affected fixed in
maven org.python:jython-standalone
<2.7.2b3
2.7.2b3

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
  • CWE-281 Improper Preservation of Permissions

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.