ruby: hash table collisions CPU usage DoS (oCERT-2011-003)

Ruby aka CRuby before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

ruby: Properly initialize the random number generator when forking new process

Ruby before 1.8.6-p114 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...

ruby: Escape sequence injection vulnerability in the Basic authentication of WEBrick

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences...

ruby: WEBrick DoS vulnerability (CPU consumption)

Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.splitheadervalue function in WEBrick::HTTP::DefaultFileHandler in WEBrick in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows context-dependent attackers to cause a denial of...

ruby: Properly initialize the random number generator when forking new process

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 issu...

ruby: ReDoS vulnerability in Time

A flaw was found in the Time gem and Time library of Ruby. The Time parser mishandles invalid strings with specific characters and causes an increase in execution time for parsing strings to Time objects. This issue may result in a Regular expression denial of service ReDoS...

ruby: memory corruption in BigDecimal on 64bit platforms

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service applicati...

ruby: missing "taintness" checks in dl module

The dl module in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not check "taintness" of inputs, which allows context-dependent attackers to bypass safe levels and execute dangerous functions by accessing a library using DL.dlopen...

ruby: Properly initialize the random number generator when forking new process

The SecureRandom.randombytes function in lib/securerandom.rb in Ruby before 1.8.7-p352 and 1.9.x before 1.9.2-p290 relies on PID values for initialization, which makes it easier for context-dependent attackers to predict the result string by leveraging knowledge of random strings obtained in an...

ruby: Buffer overrun in String-to-Float conversion

A buffer overrun vulnerability was found in Ruby. The issue occurs in a conversion algorithm from a String to a Float that causes process termination due to a segmentation fault, but under limited circumstances. This flaw may cause an illegal memory read...

ruby: XML round-trip vulnerability in REXML

A flaw was found in the way the Ruby REXML library parsed XML documents. Parsing a specially crafted XML document using REXML and writing parsed data back to a new XML document results in creating a document with a different structure. This issue could affect the integrity of processed data in...

ruby: Unintentional directory traversal by poisoned NULL byte in Dir

It was found that the methods from the Dir class did not properly handle strings containing the NULL byte. An attacker, able to inject NULL bytes in a path, could possibly trigger an unspecified behavior of the ruby script...

ruby: entity expansion DoS vulnerability in REXML

lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service memory consumption and crash via crafted text nodes in an XML document, aka an XML Entity Expansion XEE attack...

ruby: dlopen could open a library with tainted library name

The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed in Apple OS X before 10.11.4 and other products, mishandles tainting, which allows context-dependent attackers to execute arbitrary code or cause a denial of...

zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader

A flaw was found in zlib, a Ruby interface for the zlib compression/decompression library. The Zlib::GzipReader component contains a buffer overflow vulnerability. This occurs because the zstreambufferungets function does not ensure sufficient memory capacity before moving existing data, which ca...

ruby: Arbitrary memory address read vulnerability with Regex search

A flaw was found in Ruby. If attacker-supplied data is provided to the Ruby regex compiler, it is possible to extract arbitrary heap data relative to the start of the text, including pointers and sensitive strings...

ruby: integer overflow in rb_ary_splice/update/replace() - REALLOC_N

Integer overflow in the 1 rbarysplice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22; and 2 the rbaryreplace function in 1.6.x allows context-dependent attackers to trigger memory corruption via unspecified vectors, aka the...

ruby: SMTP command injection via CRLF sequences in RCPT TO or MAIL FROM commands in Net::SMTP

A SMTP command injection flaw was found in the way Ruby's Net::SMTP module handled CRLF sequences in certain SMTP commands. An attacker could potentially use this flaw to inject SMTP commands in a SMTP session in order to facilitate phishing attacks or spam campaigns...

ruby: Arbitrary heap exposure during a JSON.generate call

A buffer overflow vulnerability was found in the JSON extension of ruby. An attacker with the ability to pass a specially crafted JSON input to the extension could use this flaw to expose the interpreter's heap memory...

ruby: REXML incomplete fix for CVE-2014-8080

The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service CPU and memory consumption a crafted XML document containing an empty string in an entity that is used in a large number of...