CVE-2016-7153 Information disclosure in n/a

Medium 5.3 Published Updated

Remote attackers can obtain cleartext data via the HEIST attack by exploiting HTTP/2 congestion window information when third-party cookies are enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2016-7153?

CVE-2016-7153 is a medium-severity vulnerability in Apple Safari, published on 6 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.

Weakness: CWE-200

Which versions are affected by CVE-2016-7153?

It affects 6 products.

Products include Apple Safari, Google Chrome, Microsoft Edge, Microsoft Internet Explorer, Mozilla Firefox, Opera Opera Browser.

How do I fix CVE-2016-7153?

No fix has been published for CVE-2016-7153 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-7153 being exploited?

There is no known exploitation of CVE-2016-7153 in the wild and no public exploit code.

All Apple Safari vulnerabilities

Sources

Also known as GHSA-64x6-q8pq-xjmg, UBUNTU-CVE-2016-7153.

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