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CVE-2011-3594

4.3 · MEDIUM

The g_markup_escape_text function in the SILC protocol plug-in in libpurple 2.10.0 and earlier, as used in Pidgin and possibly other products, allows remote attackers to cause a denial of service (…

Published Nov 4, 2011pidginCWE-119EPSS 3.19%

Overview

CVE-2011-3594 is a medium-severity vulnerability affecting pidgin libpurple. It was published on November 4, 2011 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The g_markup_escape_text function in the SILC protocol plug-in in libpurple 2.10.0 and earlier, as used in Pidgin and possibly other products, allows remote attackers to cause a denial of service (crash) via invalid UTF-8 sequences that trigger use of invalid pointers and an out-of-bounds read, related to interactions with certain versions of glib2.

Remediation

Check the references section for vendor advisories and patches from pidgin. Update libpurple to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
pidginlibpurple0Affected

References

Refdeveloper.pidgin.im/ticket/14636Refdeveloper.pidgin.im/viewmtn/revision/diff/be5e66abad2af29604bc794cc4c6600ab12751f3/with/7eb1f6d56cc58bbb5b56b7df53955d36b9b419b8Refpidgin.im/news/security/?id=56Refsecunia.com/advisories/46376Refwww.mandriva.com/security/advisories?name=MDVSA-2011:183Refwww.redhat.com/support/errata/RHSA-2011-1371.htmlRefbugzilla.redhat.com/show_bug.cgi?id=743481Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18034Refdeveloper.pidgin.im/ticket/14636Refdeveloper.pidgin.im/viewmtn/revision/diff/be5e66abad2af29604bc794cc4c6600ab12751f3/with/7eb1f6d56cc58bbb5b56b7df53955d36b9b419b8

How CyberStrike helps

Frequently asked questions

What is CVE-2011-3594?

CVE-2011-3594 is a medium-severity vulnerability affecting pidgin libpurple. It was published on November 4, 2011 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2011-3594?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-3594?

Check the references section for vendor advisories and patches from pidgin. Update libpurple to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-3594?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-3594 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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