RSS   Vulnerabilities for 'Hyper'   RSS

2017-01-10
 
CVE-2016-6581

 

 
A HTTP/2 implementation built using any version of the Python HPACK library between v1.0.0 and v2.2.0 could be targeted for a denial of service attack, specifically a so-called "HPACK Bomb" attack. This attack occurs when an attacker inserts a header field that is exactly the size of the HPACK dynamic header table into the dynamic header table. The attacker can then send a header block that is simply repeated requests to expand that field in the dynamic table. This can lead to a gigantic compression ratio of 4,096 or better, meaning that 16kB of data can decompress to 64MB of data on the target machine.

 

 >>> Vendor: Python 23 Products
Python
Virtualenv
Beaker
Keyring
Setuptools
RPLY
Pyxdg
Pillow
Requests
PIP
Tgcaptcha2
Urllib3
Python priority library
Hpack
Hyper
Openpyxl
Tablib
Simplejson
Pykerberos
Pypiserver
Python-gnupg
RSA
Novajoin


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