CVE-2016-5268

Description

Mozilla Firefox before 48.0 does not properly set the LINKABLE and URI_SAFE_FOR_UNTRUSTED_CONTENT flags of about: URLs that are used for error pages, which makes it easier for remote attackers to conduct spoofing attacks via a crafted URL, as demonstrated by misleading text after an about:neterror?d= substring.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.44%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.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
http://www.securitytracker.com/id/1036508 vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1253673 issue tracking permissions required
http://www.ubuntu.com/usn/USN-3044-1 vendor advisory
http://www.securityfocus.com/bid/92260 vdb entry
https://security.gentoo.org/glsa/201701-15 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html vendor advisory
http://www.mozilla.org/security/announce/2016/mfsa2016-83.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-5268?
CVE-2016-5268 has been scored as a medium severity vulnerability.
How to fix CVE-2016-5268?
To fix CVE-2016-5268, 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-2016-5268 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-5268 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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