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VuXML ID	Description
864e6f75-2372-11e5-86ff-14dae9d210b8	node, iojs, and v8 -- denial of service node reports: This release of Node.js fixes a bug that triggers an out-of-band write in V8's utf-8 decoder. This bug impacts all Buffer to String conversions. This is an important security update as this bug can be used to cause a denial of service attack. Discovery 2015-07-03 Entry 2015-07-06 Modified 2015-07-10 node < 0.12.6 node-devel < 0.12.6 iojs < 2.3.3 v8 le 3.18.5 v8-devel le 3.27.7_2 http://blog.nodejs.org/2015/07/03/node-v0-12-6-stable/ https://github.com/joyent/node/commit/78b0e30954111cfaba0edbeee85450d8cbc6fdf6 https://github.com/nodejs/io.js/commit/030f8045c706a8c3925ec7cb3184fdfae4ba8676 https://codereview.chromium.org/1226493003 CVE-2015-5380
91be81e7-3fea-11e1-afc7-2c4138874f7d	Multiple implementations -- DoS via hash algorithm collision oCERT reports: A variety of programming languages suffer from a denial-of-service (DoS) condition against storage functions of key/value pairs in hash data structures, the condition can be leveraged by exploiting predictable collisions in the underlying hashing algorithms. The issue finds particular exposure in web server applications and/or frameworks. In particular, the lack of sufficient limits for the number of parameters in POST requests in conjunction with the predictable collision properties in the hashing functions of the underlying languages can render web applications vulnerable to the DoS condition. The attacker, using specially crafted HTTP requests, can lead to a 100% of CPU usage which can last up to several hours depending on the targeted application and server performance, the amplification effect is considerable and requires little bandwidth and time on the attacker side. The condition for predictable collisions in the hashing functions has been reported for the following language implementations: Java, JRuby, PHP, Python, Rubinius, Ruby. In the case of the Ruby language, the 1.9.x branch is not affected by the predictable collision condition since this version includes a randomization of the hashing function. The vulnerability outlined in this advisory is practically identical to the one reported in 2003 and described in the paper Denial of Service via Algorithmic Complexity Attacks which affected the Perl language. Discovery 2011-12-28 Entry 2012-01-16 Modified 2012-01-20 jruby < 1.6.5.1 ruby ruby+nopthreads ruby+nopthreads+oniguruma ruby+oniguruma < 1.8.7.357,1 rubygem-rack < 1.3.6,3 v8 < 3.8.5 redis le 2.4.6 node < 0.6.7 CVE-2011-4838 CVE-2011-4815 CVE-2011-5036 CVE-2011-5037 http://www.ocert.org/advisories/ocert-2011-003.html http://www.nruns.com/_downloads/advisory28122011.pdf

VuXML ID

Description

864e6f75-2372-11e5-86ff-14dae9d210b8

node, iojs, and v8 -- denial of service

node reports:

This release of Node.js fixes a bug that triggers an out-of-band write in V8's utf-8 decoder. This bug impacts all Buffer to String conversions. This is an important security update as this bug can be used to cause a denial of service attack.

Discovery 2015-07-03
Entry 2015-07-06
Modified 2015-07-10
node

< 0.12.6

node-devel

< 0.12.6

iojs

< 2.3.3

le 3.18.5

v8-devel

le 3.27.7_2

http://blog.nodejs.org/2015/07/03/node-v0-12-6-stable/
https://github.com/joyent/node/commit/78b0e30954111cfaba0edbeee85450d8cbc6fdf6
https://github.com/nodejs/io.js/commit/030f8045c706a8c3925ec7cb3184fdfae4ba8676
https://codereview.chromium.org/1226493003
CVE-2015-5380

91be81e7-3fea-11e1-afc7-2c4138874f7d

Multiple implementations -- DoS via hash algorithm collision

oCERT reports:

A variety of programming languages suffer from a denial-of-service (DoS) condition against storage functions of key/value pairs in hash data structures, the condition can be leveraged by exploiting predictable collisions in the underlying hashing algorithms.

The issue finds particular exposure in web server applications and/or frameworks. In particular, the lack of sufficient limits for the number of parameters in POST requests in conjunction with the predictable collision properties in the hashing functions of the underlying languages can render web applications vulnerable to the DoS condition. The attacker, using specially crafted HTTP requests, can lead to a 100% of CPU usage which can last up to several hours depending on the targeted application and server performance, the amplification effect is considerable and requires little bandwidth and time on the attacker side.

The condition for predictable collisions in the hashing functions has been reported for the following language implementations: Java, JRuby, PHP, Python, Rubinius, Ruby. In the case of the Ruby language, the 1.9.x branch is not affected by the predictable collision condition since this version includes a randomization of the hashing function.

The vulnerability outlined in this advisory is practically identical to the one reported in 2003 and described in the paper Denial of Service via Algorithmic Complexity Attacks which affected the Perl language.

Discovery 2011-12-28
Entry 2012-01-16
Modified 2012-01-20
jruby

< 1.6.5.1

ruby
ruby+nopthreads
ruby+nopthreads+oniguruma
ruby+oniguruma

< 1.8.7.357,1

rubygem-rack

< 1.3.6,3

< 3.8.5

redis

le 2.4.6

node

< 0.6.7

CVE-2011-4838
CVE-2011-4815
CVE-2011-5036
CVE-2011-5037
http://www.ocert.org/advisories/ocert-2011-003.html
http://www.nruns.com/_downloads/advisory28122011.pdf