Vulnerability Monitor

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CVE-2012-3995

The IsCSSWordSpacingSpace function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via unspecified vectors.

Security Impact Summary

CVE-2012-3995 is a security vulnerability that . Impacting 12 products from mozilla, from mozilla, from mozilla and 9 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2012-10-10T17:55:02.143

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 9.3 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 10.0.8	Yes
Application	mozilla	thunderbird_esr	< 10.0.8	Yes
Application	mozilla	firefox	< 16.0	Yes
Application	mozilla	thunderbird	< 16.0	Yes
Application	mozilla	seamonkey	< 2.13	Yes
Operating System	canonical	ubuntu_linux	10.04	Yes
Operating System	canonical	ubuntu_linux	11.04	Yes
Operating System	canonical	ubuntu_linux	11.10	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	redhat	enterprise_linux_desktop	5.0	Yes
Operating System	redhat	enterprise_linux_desktop	6.0	Yes
Operating System	redhat	enterprise_linux_eus	6.3	Yes
Operating System	redhat	enterprise_linux_server	5.0	Yes
Operating System	redhat	enterprise_linux_server	6.0	Yes
Operating System	redhat	enterprise_linux_workstation	5.0	Yes
Operating System	redhat	enterprise_linux_workstation	6.0	Yes
Operating System	suse	linux_enterprise_desktop	10	Yes
Operating System	suse	linux_enterprise_desktop	11	Yes
Operating System	suse	linux_enterprise_sdk	10	Yes
Operating System	suse	linux_enterprise_server	10	Yes
Operating System	suse	linux_enterprise_server	11	Yes
Operating System	suse	linux_enterprise_server	11	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2012-1351.html Third Party Advisory ([email protected])
http://secunia.com/advisories/50856 Third Party Advisory ([email protected])
http://secunia.com/advisories/50892 Third Party Advisory ([email protected])
http://secunia.com/advisories/50904 Third Party Advisory ([email protected])
http://secunia.com/advisories/50935 Third Party Advisory ([email protected])
http://secunia.com/advisories/50936 Third Party Advisory ([email protected])
http://secunia.com/advisories/50984 Third Party Advisory ([email protected])
http://secunia.com/advisories/55318 Third Party Advisory ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163 Third Party Advisory ([email protected])
http://www.mozilla.org/security/announce/2012/mfsa2012-85.html Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/56136 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/USN-1611-1 Third Party Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=765621 Issue Tracking, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/79156 Third Party Advisory, VDB Entry ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16808 Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2012-1351.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50856 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50892 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50904 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50935 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50936 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/50984 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/55318 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.mozilla.org/security/announce/2012/mfsa2012-85.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/56136 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-1611-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=765621 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/79156 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16808 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mozilla's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.