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CVE-2011-2686

Status Candidate

Overview

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.

Related Files

Ubuntu Security Notice USN-1377-1
Posted Feb 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1377-1 - Drew Yao discovered that the WEBrick HTTP server was vulnerable to cross-site scripting attacks when displaying error pages. A remote attacker could use this flaw to run arbitrary web script. Drew Yao discovered that Ruby's BigDecimal module did not properly allocate memory on 64-bit platforms. An attacker could use this flaw to cause a denial of service or possibly execute arbitrary code with user privileges. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, arbitrary, xss, ruby
systems | linux, ubuntu
advisories | CVE-2010-0541, CVE-2011-0188, CVE-2011-1004, CVE-2011-1005, CVE-2011-2686, CVE-2011-2705, CVE-2011-4815, CVE-2010-0541, CVE-2011-0188, CVE-2011-1004, CVE-2011-1005, CVE-2011-2686, CVE-2011-2705, CVE-2011-4815
SHA-256 | cec298eba7976ebaa181ffd4c17d9f86fd8b7f0120e64642a7761c57933776cd
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