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CVE-2011-2998

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a...

10.0 HighFix available

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via JavaScript code containing a large RegExp expression.

Exploit likelihood

5.37%Down 2.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 10.0

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via JavaScript code containing a large RegExp expression.

Record
CVE-2011-2998
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via JavaScript code containing a large RegExp expression.

Record
CVE-2011-2998
Updated
2026-11-02
EUVDEUVD-2011-2966 No score

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via JavaScript code containing a large RegExp expression.

Record
EUVD-2011-2966
Updated
2026-11-03
GitHub AdvisoriesGHSA-2rjf-9fvj-83c2 No score

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a...

Integer underflow in Mozilla Firefox 3.6.x before 3.6.23 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via JavaScript code containing a large RegExp expression.

Record
GHSA-2rjf-9fvj-83c2
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
iceape
Debian:6.0
 before 2.0.11-8, plus listed versions
2.0.11-22.0.11-32.0.11-42.0.11-52.0.11-62.0.11-7
2.0.11-8
iceweasel
Debian:6.0
 before 3.5.16-10, plus listed versions
3.5.16-10~bpo50+13.5.16-43.5.16-53.5.16-5~bpo50+13.5.16-6
Show 6 moreShow less
3.5.16-6~bpo50+13.5.16-73.5.16-7~bpo50+13.5.16-83.5.16-8~bpo50+13.5.16-9
3.5.16-10
xulrunner
Debian:5.0
 before 1.9.0.19-14, plus listed versions
1.9.0.10-11.9.0.11-0lenny11.9.0.11-11.9.0.12-0lenny11.9.0.12-1
Show 27 moreShow less
1.9.0.13-0lenny11.9.0.13-11.9.0.14-0lenny11.9.0.14-11.9.0.15-0lenny11.9.0.16-11.9.0.18-11.9.0.19-11.9.0.19-111.9.0.19-121.9.0.19-131.9.0.19-21.9.0.19-31.9.0.19-41.9.0.19-51.9.0.19-61.9.0.19-71.9.0.19-81.9.0.19-91.9.0.5-11.9.0.6-11.9.0.7-0lenny11.9.0.7-0lenny21.9.0.7-11.9.0.8-11.9.0.9-0lenny21.9.0.9-1
1.9.0.19-14
icedove
Debian:6.0
 before 3.0.11-1+squeeze5, plus listed versions
3.0.11-13.0.11-1+squeeze13.0.11-1+squeeze23.0.11-1+squeeze33.0.11-1+squeeze4
3.0.11-1+squeeze5
firefox
Red Hat:enterprise_linux:4::as
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox
Red Hat:enterprise_linux:4::desktop
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox
Red Hat:enterprise_linux:4::es
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
Show 61 moreShow less
Affected packages
PackageAffectedFixed
firefox
Red Hat:enterprise_linux:4::ws
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:3.6.23-1.el4
0:3.6.23-1.el4
firefox
Red Hat:enterprise_linux:5::client
 before 0:3.6.23-2.el5_7
0:3.6.23-2.el5_7
firefox-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:3.6.23-2.el5_7
0:3.6.23-2.el5_7
xulrunner
Red Hat:enterprise_linux:5::client
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner-devel
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
firefox
Red Hat:enterprise_linux:5::server
 before 0:3.6.23-2.el5_7
0:3.6.23-2.el5_7
firefox-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:3.6.23-2.el5_7
0:3.6.23-2.el5_7
xulrunner
Red Hat:enterprise_linux:5::server
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
xulrunner-devel
Red Hat:enterprise_linux:5::server
 before 0:1.9.2.23-1.el5_7
0:1.9.2.23-1.el5_7
firefox
Red Hat:enterprise_linux:6::server
 before 0:3.6.23-2.el6_1
0:3.6.23-2.el6_1
firefox-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:3.6.23-2.el6_1
0:3.6.23-2.el6_1
xulrunner
Red Hat:enterprise_linux:6::server
 before 0:1.9.2.23-1.el6_1.1
0:1.9.2.23-1.el6_1.1
xulrunner-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:1.9.2.23-1.el6_1.1
0:1.9.2.23-1.el6_1.1
xulrunner-devel
Red Hat:enterprise_linux:6::server
 before 0:1.9.2.23-1.el6_1.1
0:1.9.2.23-1.el6_1.1
thunderbird
Red Hat:enterprise_linux:6::server
 before 0:3.1.15-1.el6_1
0:3.1.15-1.el6_1
thunderbird-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:3.1.15-1.el6_1
0:3.1.15-1.el6_1
thunderbird
Red Hat:enterprise_linux:4::as
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird
Red Hat:enterprise_linux:4::desktop
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird
Red Hat:enterprise_linux:4::es
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird
Red Hat:enterprise_linux:4::ws
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:1.5.0.12-44.el4
0:1.5.0.12-44.el4
thunderbird
Red Hat:enterprise_linux:5::client
 before 0:2.0.0.24-26.el5_7
0:2.0.0.24-26.el5_7
thunderbird-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.0.0.24-26.el5_7
0:2.0.0.24-26.el5_7
thunderbird
Red Hat:rhel_productivity:5
 before 0:2.0.0.24-26.el5_7
0:2.0.0.24-26.el5_7
thunderbird-debuginfo
Red Hat:rhel_productivity:5
 before 0:2.0.0.24-26.el5_7
0:2.0.0.24-26.el5_7
seamonkey
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-chat
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-devel
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-mail
Red Hat:enterprise_linux:4::as
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-chat
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-devel
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-mail
Red Hat:enterprise_linux:4::desktop
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-chat
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-devel
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-mail
Red Hat:enterprise_linux:4::es
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-chat
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-devel
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-dom-inspector
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-js-debugger
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4
seamonkey-mail
Red Hat:enterprise_linux:4::ws
 before 0:1.0.9-76.el4
0:1.0.9-76.el4

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-2998 is a high vulnerability (CVSS 10.0) in Mozilla Firefox, published September 29, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.37%, the 92nd percentile. Fixed in iceape 2.0.11-8.

References

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