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CVE-2015-7203

10.0 · HIGH

Buffer overflow in the DirectWriteFontInfo::LoadFontFamilyData function in gfx/thebes/gfxDWriteFontList.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service…

Published Dec 16, 2015mozillaCWE-119EPSS 4.32%

Overview

CVE-2015-7203 is a high-severity vulnerability affecting mozilla firefox. It was published on December 16, 2015 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Buffer overflow in the DirectWriteFontInfo::LoadFontFamilyData function in gfx/thebes/gfxDWriteFontList.cpp in Mozilla Firefox before 43.0 might allow remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted font-family name.

Remediation

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
mozillafirefox0Affected

References

Reflists.fedoraproject.org/pipermail/package-announce/2015-December/174083.htmlReflists.fedoraproject.org/pipermail/package-announce/2015-December/174253.htmlReflists.opensuse.org/opensuse-updates/2015-12/msg00104.htmlReflists.opensuse.org/opensuse-updates/2016-02/msg00007.htmlReflists.opensuse.org/opensuse-updates/2016-02/msg00008.htmlRefwww.mozilla.org/security/announce/2015/mfsa2015-144.htmlRefwww.securityfocus.com/bid/79280Refwww.securitytracker.com/id/1034426Refwww.ubuntu.com/usn/USN-2833-1Refbugzilla.mozilla.org/show_bug.cgi?id=1201183

How CyberStrike helps

Frequently asked questions

What is CVE-2015-7203?

CVE-2015-7203 is a high-severity vulnerability affecting mozilla firefox. It was published on December 16, 2015 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2015-7203?

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-7203?

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-7203?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-7203 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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