CVE-2012-3978

Description

The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.75% Top 20%
Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory mozilla.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=770429
http://www.debian.org/security/2012/dsa-2556 vendor advisory
http://www.mozilla.org/security/announce/2012/mfsa2012-70.html vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16923 signature vdb entry
http://rhn.redhat.com/errata/RHSA-2012-1211.html vendor advisory
http://www.debian.org/security/2012/dsa-2553 vendor advisory
http://www.ubuntu.com/usn/USN-1548-1 vendor advisory
http://www.ubuntu.com/usn/USN-1548-2 vendor advisory
http://www.securityfocus.com/bid/55306 vdb entry
http://rhn.redhat.com/errata/RHSA-2012-1210.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html vendor advisory
http://www.debian.org/security/2012/dsa-2554 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html vendor advisory
http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf

Frequently Asked Questions

What is the severity of CVE-2012-3978?
CVE-2012-3978 has been scored as a medium severity vulnerability.
How to fix CVE-2012-3978?
To fix CVE-2012-3978, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-3978 being actively exploited in the wild?
It is possible that CVE-2012-3978 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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