Skip to content
Fencer Intel
medium 4.3

CVE-2011-2605 json

CRLF injection vulnerability in the nsCookieService::SetCookieStringInternal function in netwerk/cookie/nsCookieService.cpp in Mozilla Fire…

published 2011-06-30 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2588

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

CRLF injection vulnerability in the nsCookieService::SetCookieStringInternal function in netwerk/cookie/nsCookieService.cpp in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, and Thunderbird before 3.1.11, allows remote attackers to bypass intended access restrictions via a string containing a \n (newline) character, which is not properly handled in a JavaScript "document.cookie =" expression, a different vulnerability than CVE-2011-2374.

Patch / fix

  • seamonkey RHEL 4 1.0.9-71.el4
  • seamonkey-chat RHEL 4 1.0.9-71.el4
  • seamonkey-mail RHEL 4 1.0.9-71.el4
  • seamonkey-js-debugger RHEL 4 1.0.9-71.el4
  • seamonkey-dom-inspector RHEL 4 1.0.9-71.el4
  • thunderbird RHEL 4 1.5.0.12-39.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.24-18.el5_6
  • thunderbird RHEL 6 3.1.11-2.el6_1

red hat advisories RHSA-2011:0888RHSA-2011:0887RHSA-2011:0886RHSA-2011:0885

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-2011-2605 updated cvss 6.8

Mozilla Miscellaneous memory safety hazards (MFSA 2011-19)

  • Red Hat Enterprise Linux (v. 5.6.z server) firefox 3.6.18-1.el5_6, xulrunner 1.9.2.18-2.el5_6 Red Hat Enterprise Linux AS version 4 firefox 3.6.18-2.el4, seamonkey 1.0.9-71.el4, seamonkey-chat 1.0.9-71.el4, seamonkey-mail 1.0.9-71.el4, thunderbird 1.5.0.12-39.el4, seamonkey-js-debugger 1.0.9-71.el4, +1 more
    fixed: vendor fix RHSA-2011:0885
  • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird 2.0.0.24-18.el5_6
    fixed: vendor fix RHSA-2011:0887
  • Red Hat Enterprise Linux Desktop version 4 firefox 3.6.18-2.el4, seamonkey 1.0.9-71.el4, seamonkey-chat 1.0.9-71.el4, seamonkey-mail 1.0.9-71.el4, thunderbird 1.5.0.12-39.el4, seamonkey-js-debugger 1.0.9-71.el4, +1 more Red Hat Enterprise Linux ES version 4 firefox 3.6.18-2.el4, seamonkey 1.0.9-71.el4, seamonkey-chat 1.0.9-71.el4, seamonkey-mail 1.0.9-71.el4, thunderbird 1.5.0.12-39.el4, seamonkey-js-debugger 1.0.9-71.el4, +1 more
    fixed: vendor fix RHSA-2011:0885
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-18.el5_6
    fixed: vendor fix RHSA-2011:0887
  • Red Hat Enterprise Linux Server (v. 6) firefox 3.6.18-1.el6_1, xulrunner 1.9.2.18-2.el6_1 Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 3.1.11-2.el6_1, xulrunner 1.9.2.18-2.el6_1 Red Hat Enterprise Linux WS version 4 firefox 3.6.18-2.el4, seamonkey 1.0.9-71.el4, seamonkey-chat 1.0.9-71.el4, seamonkey-mail 1.0.9-71.el4, thunderbird 1.5.0.12-39.el4, seamonkey-js-debugger 1.0.9-71.el4, +1 more
    fixed: vendor fix RHSA-2011:0885

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

1.03% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.