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TI-2011-03169 Aliases CVE-2011-3594GHSA-5qw6-gghj-96qh

The g_markup_escape_text function in the SILC protocol plug-in in libpurple 2.10.0 and…

Priority LOW 26CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.03194 88th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 48

CPEVersionsRoleVendor
cpe:2.3:a:pidgin:libpurple:*:*:*:*:*:*:*:*up to 2.10.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:1.0:*:*:*:*:*:*:*1.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.0.0:*:*:*:*:*:*:*2.0.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.0.1:*:*:*:*:*:*:*2.0.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.0.2:*:*:*:*:*:*:*2.0.2VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.1.0:*:*:*:*:*:*:*2.1.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.1.1:*:*:*:*:*:*:*2.1.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.2.0:*:*:*:*:*:*:*2.2.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.2.1:*:*:*:*:*:*:*2.2.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.2.2:*:*:*:*:*:*:*2.2.2VulnerablePidgin
  • cpe:2.3:a:pidgin:libpurple:*:*:*:*:*:*:*:* Versions up to 2.10.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Vulnerable ·Pidgin
Show 38 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:pidgin:libpurple:2.3.0:*:*:*:*:*:*:*2.3.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.3.1:*:*:*:*:*:*:*2.3.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.4.0:*:*:*:*:*:*:*2.4.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.4.1:*:*:*:*:*:*:*2.4.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.4.2:*:*:*:*:*:*:*2.4.2VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.4.3:*:*:*:*:*:*:*2.4.3VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.0:*:*:*:*:*:*:*2.5.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.1:*:*:*:*:*:*:*2.5.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.2:*:*:*:*:*:*:*2.5.2VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.3:*:*:*:*:*:*:*2.5.3VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.4:*:*:*:*:*:*:*2.5.4VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.5:*:*:*:*:*:*:*2.5.5VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.6:*:*:*:*:*:*:*2.5.6VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.7:*:*:*:*:*:*:*2.5.7VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.8:*:*:*:*:*:*:*2.5.8VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.5.9:*:*:*:*:*:*:*2.5.9VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.0:*:*:*:*:*:*:*2.6.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.1:*:*:*:*:*:*:*2.6.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.2:*:*:*:*:*:*:*2.6.2VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.3:*:*:*:*:*:*:*2.6.3VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.4:*:*:*:*:*:*:*2.6.4VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.5:*:*:*:*:*:*:*2.6.5VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.6.6:*:*:*:*:*:*:*2.6.6VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.0:*:*:*:*:*:*:*2.7.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.1:*:*:*:*:*:*:*2.7.1VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.2:*:*:*:*:*:*:*2.7.2VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.3:*:*:*:*:*:*:*2.7.3VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.4:*:*:*:*:*:*:*2.7.4VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.5:*:*:*:*:*:*:*2.7.5VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.6:*:*:*:*:*:*:*2.7.6VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.7:*:*:*:*:*:*:*2.7.7VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.8:*:*:*:*:*:*:*2.7.8VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.9:*:*:*:*:*:*:*2.7.9VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.10:*:*:*:*:*:*:*2.7.10VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.7.11:*:*:*:*:*:*:*2.7.11VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.8.0:*:*:*:*:*:*:*2.8.0VulnerablePidgin
cpe:2.3:a:pidgin:libpurple:2.9.0:*:*:*:*:*:*:*2.9.0VulnerablePidgin
cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*all versionsVulnerablePidgin
  • cpe:2.3:a:pidgin:libpurple:2.3.0:*:*:*:*:*:*:* Versions 2.3.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.3.1:*:*:*:*:*:*:* Versions 2.3.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.4.3:*:*:*:*:*:*:* Versions 2.4.3 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.0:*:*:*:*:*:*:* Versions 2.5.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.4:*:*:*:*:*:*:* Versions 2.5.4 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.5:*:*:*:*:*:*:* Versions 2.5.5 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.6:*:*:*:*:*:*:* Versions 2.5.6 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.7:*:*:*:*:*:*:* Versions 2.5.7 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.8:*:*:*:*:*:*:* Versions 2.5.8 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.5.9:*:*:*:*:*:*:* Versions 2.5.9 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.0:*:*:*:*:*:*:* Versions 2.6.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.1:*:*:*:*:*:*:* Versions 2.6.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.2:*:*:*:*:*:*:* Versions 2.6.2 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.3:*:*:*:*:*:*:* Versions 2.6.3 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.4:*:*:*:*:*:*:* Versions 2.6.4 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.5:*:*:*:*:*:*:* Versions 2.6.5 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.6.6:*:*:*:*:*:*:* Versions 2.6.6 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.0:*:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.1:*:*:*:*:*:*:* Versions 2.7.1 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.2:*:*:*:*:*:*:* Versions 2.7.2 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.3:*:*:*:*:*:*:* Versions 2.7.3 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.4:*:*:*:*:*:*:* Versions 2.7.4 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.5:*:*:*:*:*:*:* Versions 2.7.5 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.6:*:*:*:*:*:*:* Versions 2.7.6 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.7:*:*:*:*:*:*:* Versions 2.7.7 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.8:*:*:*:*:*:*:* Versions 2.7.8 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.9:*:*:*:*:*:*:* Versions 2.7.9 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.10:*:*:*:*:*:*:* Versions 2.7.10 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.7.11:*:*:*:*:*:*:* Versions 2.7.11 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.8.0:*:*:*:*:*:*:* Versions 2.8.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:libpurple:2.9.0:*:*:*:*:*:*:* Versions 2.9.0 Vulnerable ·Pidgin
  • cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Pidgin

Remediation

Red Hat 1 advisory

  • RHSA-2011:1371 Released 2011-10-14 · Red Hat rating Moderate
    pidgin security update
    • RHEL Desktop Workstation (v. 5 client) finch-devel-2.6.6-5.el5_7.1, finch-devel-2.6.6-5.el5_7.1.i386, libpurple-devel-2.6.6-5.el5_7.1 +4
    • RHEL Optional Productivity Applications (v. 5 server) finch-2.6.6-5.el5_7.1, finch-2.6.6-5.el5_7.1.i386, finch-devel-2.6.6-5.el5_7.1 +15
    • Red Hat Enterprise Linux AS version 4 finch-2.6.6-7.el4, finch-2.6.6-7.el4.i386, finch-2.6.6-7.el4.ia64 +33
    • Red Hat Enterprise Linux Desktop (v. 5 client) finch-2.6.6-5.el5_7.1, finch-2.6.6-5.el5_7.1.i386, libpurple-2.6.6-5.el5_7.1 +9
    • Red Hat Enterprise Linux Desktop version 4 finch-2.6.6-7.el4, finch-2.6.6-7.el4.i386, finch-devel-2.6.6-7.el4 +15
    • Red Hat Enterprise Linux ES version 4 finch-2.6.6-7.el4, finch-2.6.6-7.el4.i386, finch-2.6.6-7.el4.ia64 +24
    • Red Hat Enterprise Linux WS version 4 finch-2.6.6-7.el4, finch-2.6.6-7.el4.i386, finch-2.6.6-7.el4.ia64 +24

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
RHEL Desktop Workstation (v. 5 client)Fixed RHSA-2011:1371
RHEL Optional Productivity Applications (v. 5 server)Fixed RHSA-2011:1371
Red Hat Enterprise Linux AS version 4Fixed RHSA-2011:1371
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2011:1371
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2011:1371
Red Hat Enterprise Linux ES version 4Fixed RHSA-2011:1371
Red Hat Enterprise Linux WS version 4Fixed RHSA-2011:1371
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-3594
  2. 2026-10-03 Alias added: GHSA-5qw6-gghj-96qh

References

Exploit 1

Advisory 2

Other 4

  • TI-2009-02939 The msn_slp_process_msg function in libpurple/protocols/msn/slpcall.c in the MSN protocol… CVSS 2.0MEDIUM 5.0
  • TI-2009-02938 The msn_slp_sip_recv function in libpurple/protocols/msn/slp.c in the MSN protocol plugin… CVSS 2.0MEDIUM 5.0
  • TI-2009-02585 libpurple/protocols/irc/msgs.c in the IRC protocol plugin in libpurple in Pidgin before… CVSS 2.0MEDIUM 5.0
  • TI-2011-02595 The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through… CVSS 2.0MEDIUM 4.3
  • TI-2009-02940 The XMPP protocol plugin in libpurple in Pidgin before 2.6.2 does not properly handle an… CVSS 2.0MEDIUM 5.0
  • TI-2010-04258 directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before… CVSS 2.0MEDIUM 4.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences