DL::dlopen could open a library with tainted library name even if $SAFE > 0. This vulnerability affects Ruby versions 1.8, 1.9, 2.1, 2.2.
Upstream patch: https://github.com/ruby/ruby/commit/4600cf725a86ce31266153647ae5aa1197b1215b
Additional information and CVE assignment:
http://seclists.org/oss-sec/2015/q3/222
Heap-based buffer overflow in Ruby 1.8, 1.9 before 1.9.3-p484, 2.0 before 2.0.0-p353, 2.1 before 2.1.0 preview2, and trunk before revision 43780 allows context-dependent attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a string that is converted to a floating point value, as demonstrated using (1) the tof method or (2) JSON.parse.
Last updated 24 July 2024
DISPUTED The openssl extension in Ruby 2.x does not properly maintain the state of process memory after a file is reopened, which allows remote attackers to spoof signatures within the context of a Ruby script that attempts signature verification after performing a certain sequence of filesystem operations. NOTE: this issue has been disputed by the Ruby OpenSSL team and third parties, who state that the original demonstration PoC contains errors and redundant or unnecessarily-complex code that does not appear to be related to a demonstration of the issue. As of 20140502, CVE is not aware of any public comment by the original researcher.
Originally, Common Vulnerabilities and Exposures assigned an identifier CVE-2011-1005 to the following vulnerability:
The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#tos method, as demonstrated by changing an intended pathname.
Later it was reported: [1] http://www.openwall.com/lists/oss-security/2012/10/02/4
that the Ruby nameerrmesgtostr() method is vulnerable to the similar flaw.
Relevant upstream patch: [2] http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37068
Originally, Common Vulnerabilities and Exposures assigned an identifier CVE-2011-1005 to the following vulnerability:
The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#tos method, as demonstrated by changing an intended pathname.
Later it was reported: [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689075 [2] http://www.openwall.com/lists/oss-security/2012/10/02/4
that upstream ruby 1.9.1 and ruby 1.9.3 versions are also vulnerable to this flaw.
Relevant upstream patch: [3] http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37068