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Fencer Vulns
critical 9.3

CVE-2009-1376 in the critical feed json

Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1) libpurple/protocols/msn/slplink.c an…

published 2009-05-26 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-1374

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.3%
EPSS 13.3% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1) libpurple/protocols/msn/slplink.c and (2) libpurple/protocols/msnp9/slplink.c in Pidgin (formerly Gaim) before 2.5.6 on 32-bit platforms allow remote attackers to execute arbitrary code via a malformed SLP message with a crafted offset value, leading to buffer overflows. NOTE: this issue exists because of an incomplete fix for CVE-2008-2927.

Patch / fix

  • pidgin Debian 14, Debian 13, Debian 12 2.5.6-1

debian advisories DEBIAN-CVE-2009-1376

  • pidgin RHEL 4 2.5.5-2.el4
  • pidgin RHEL 5 2.5.5-3.el5
  • finch RHEL 4 2.5.5-2.el4
  • finch RHEL 5 2.5.5-3.el5
  • libpurple RHEL 4 2.5.5-2.el4
  • libpurple RHEL 5 2.5.5-3.el5
  • pidgin-perl RHEL 4 2.5.5-2.el4
  • pidgin-perl RHEL 5 2.5.5-3.el5

red hat advisories RHSA-2009:1060RHSA-2009:1059

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-2009-1376 updated cvss 6.0

pidgin incomplete fix for CVE-2008-2927

  • Red Hat Desktop version 3 pidgin 1.5.1-3.el3 Red Hat Enterprise Linux AS version 3 pidgin 1.5.1-3.el3
    fixed: vendor fix RHSA-2009:1059
  • Red Hat Enterprise Linux AS version 4 finch 2.5.5-2.el4, pidgin 2.5.5-2.el4, libpurple 2.5.5-2.el4, pidgin-perl 2.5.5-2.el4, libpurple-tcl 2.5.5-2.el4, libpurple-perl 2.5.5-2.el4 Red Hat Enterprise Linux Desktop (v. 5 client) finch 2.5.5-3.el5, pidgin 2.5.5-3.el5, libpurple 2.5.5-3.el5, pidgin-perl 2.5.5-3.el5, libpurple-tcl 2.5.5-3.el5, libpurple-perl 2.5.5-3.el5 Red Hat Enterprise Linux Desktop version 4 finch 2.5.5-2.el4, pidgin 2.5.5-2.el4, libpurple 2.5.5-2.el4, pidgin-perl 2.5.5-2.el4, libpurple-tcl 2.5.5-2.el4, libpurple-perl 2.5.5-2.el4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) finch 2.5.5-3.el5, pidgin 2.5.5-3.el5, libpurple 2.5.5-3.el5, pidgin-perl 2.5.5-3.el5, libpurple-tcl 2.5.5-3.el5, libpurple-perl 2.5.5-3.el5
    fixed: vendor fix RHSA-2009:1060
  • Red Hat Enterprise Linux ES version 3 pidgin 1.5.1-3.el3
    fixed: vendor fix RHSA-2009:1059
  • Red Hat Enterprise Linux ES version 4 finch 2.5.5-2.el4, pidgin 2.5.5-2.el4, libpurple 2.5.5-2.el4, pidgin-perl 2.5.5-2.el4, libpurple-tcl 2.5.5-2.el4, libpurple-perl 2.5.5-2.el4
    fixed: vendor fix RHSA-2009:1060
  • Red Hat Enterprise Linux WS version 3 pidgin 1.5.1-3.el3
    fixed: vendor fix RHSA-2009:1059
  • Red Hat Enterprise Linux WS version 4 finch 2.5.5-2.el4, pidgin 2.5.5-2.el4, libpurple 2.5.5-2.el4, pidgin-perl 2.5.5-2.el4, libpurple-tcl 2.5.5-2.el4, libpurple-perl 2.5.5-2.el4
    fixed: vendor fix RHSA-2009:1060

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

Timeline

  1. Published
  2. First public exploit (EDB-9615)

Exploit prediction

13.29% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-9615 Pidgin MSN 2.5.8 - Remote Code Execution remote, 2009-09-09

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Vulns 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.