Homepage
About Snyk

Out-of-Bounds Affecting expat package, versions <2.0.1-6

Severity

 Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    1.07% (85th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN9-EXPAT-357986
  • published 4 Dec 2009
  • disclosed 4 Dec 2009
Report a new vulnerability Found a mistake?

Introduced: 4 Dec 2009

CVE-2009-3560 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:9 expat to version 2.0.1-6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an XML document with malformed UTF-8 sequences that trigger a buffer over-read, related to the doProlog function in lib/xmlparse.c, a different vulnerability than CVE-2009-2625 and CVE-2009-3720.

References

CVSS Scores

version 3.1
Expand this section

NVD

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

Red Hat

5.3 medium