CVE-2014-8642 Security feature bypass in n/a

Medium 4.3 Published Updated

Remote attackers can bypass OCSP revocation checks to sniff sensitive data during sessions with revoked certificates, affecting Firefox and SeaMonkey users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2014-8642?

CVE-2014-8642 is a medium-severity vulnerability in Mozilla Firefox, published on 14 Jan 2015. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not consider the id-pkix-ocsp-nocheck extension in deciding whether to trust an OCSP responder, which makes it easier for remote attackers to obtain sensitive information by sniffing the network during a session in which there was an incorrect decision to accept a compromised and revoked certificate.

Weakness: CWE-310

Which versions are affected by CVE-2014-8642?

It affects 3 products.

Products include Mozilla Firefox, Mozilla Seamonkey, Opensuse Opensuse.

How do I fix CVE-2014-8642?

Upgrade to a fixed version.

Is CVE-2014-8642 being exploited?

There is no known exploitation of CVE-2014-8642 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-cw54-px9j-p8mf, UBUNTU-CVE-2014-8642.

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