CVE-2016-7153

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.91% Top 15%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1036741 vdb entry
http://www.securitytracker.com/id/1036742 vdb entry
https://tom.vg/papers/heist_blackhat2016.pdf technical description
http://www.securitytracker.com/id/1036745 vdb entry
http://arstechnica.com/security/2016/08/new-attack-steals-ssns-e-mail-addresses-and-more-from-https-pages/ technical description
http://www.securitytracker.com/id/1036744 vdb entry
http://www.securitytracker.com/id/1036743 vdb entry
http://www.securityfocus.com/bid/92773 vdb entry
http://www.securitytracker.com/id/1036746 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-7153?
CVE-2016-7153 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7153?
To fix CVE-2016-7153, 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-2016-7153 being actively exploited in the wild?
It is possible that CVE-2016-7153 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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