Vulnerabilities (CVE)

Filtered by vendor Ruby-lang Subscribe
Filtered by product Ruby
Total 108 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-41817 6 Debian, Fedoraproject, Opensuse and 3 more 9 Debian Linux, Fedora, Factory and 6 more 2023-08-08 5.0 MEDIUM 7.5 HIGH
Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.
CVE-2021-32066 2 Oracle, Ruby-lang 2 Jd Edwards Enterpriseone Tools, Ruby 2023-08-08 5.8 MEDIUM 7.4 HIGH
An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
CVE-2021-28965 2 Fedoraproject, Ruby-lang 3 Fedora, Rexml, Ruby 2023-08-08 5.0 MEDIUM 7.5 HIGH
The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing.
CVE-2021-33621 2 Fedoraproject, Ruby-lang 3 Fedora, Cgi, Ruby 2023-08-08 N/A 8.8 HIGH
The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.
CVE-2009-4492 1 Ruby-lang 2 Ruby, Webrick 2023-08-01 7.5 HIGH N/A
WEBrick 1.3.1 in Ruby 1.8.6 through patchlevel 383, 1.8.7 through patchlevel 248, 1.8.8dev, 1.9.1 through patchlevel 376, and 1.9.2dev writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.
CVE-2008-1145 2 Fedoraproject, Ruby-lang 3 Fedora, Ruby, Webrick 2023-08-01 5.0 MEDIUM N/A
Directory traversal vulnerability in WEBrick in Ruby 1.8 before 1.8.5-p115 and 1.8.6-p114, and 1.9 through 1.9.0-1, when running on systems that support backslash (\) path separators or case-insensitive file names, allows remote attackers to access arbitrary files via (1) "..%5c" (encoded backslash) sequences or (2) filenames that match patterns in the :NondisclosureName option.
CVE-2022-28739 3 Apple, Debian, Ruby-lang 3 Macos, Debian Linux, Ruby 2023-06-09 4.3 MEDIUM 7.5 HIGH
There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.
CVE-2023-28756 3 Debian, Fedoraproject, Ruby-lang 4 Debian Linux, Fedora, Ruby and 1 more 2023-05-30 N/A 5.3 MEDIUM
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
CVE-2019-16201 2 Debian, Ruby-lang 2 Debian Linux, Ruby 2023-04-30 7.8 HIGH 7.5 HIGH
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.
CVE-2017-17742 2 Debian, Ruby-lang 2 Debian Linux, Ruby 2023-04-30 5.0 MEDIUM 5.3 MEDIUM
Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.
CVE-2019-16255 4 Debian, Opensuse, Oracle and 1 more 4 Debian Linux, Leap, Graalvm and 1 more 2023-04-30 6.8 MEDIUM 8.1 HIGH
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first argument (aka the "command" argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An attacker can exploit this to call an arbitrary Ruby method.
CVE-2020-25613 2 Fedoraproject, Ruby-lang 3 Fedora, Ruby, Webrick 2023-04-30 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.
CVE-2021-31810 4 Debian, Fedoraproject, Oracle and 1 more 4 Debian Linux, Fedora, Jd Edwards Enterpriseone Tools and 1 more 2023-04-30 5.0 MEDIUM 5.8 MEDIUM
An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).
CVE-2019-16254 2 Debian, Ruby-lang 2 Debian Linux, Ruby 2023-04-30 5.0 MEDIUM 5.3 MEDIUM
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.
CVE-2023-22795 3 Debian, Ruby-lang, Rubyonrails 3 Debian Linux, Ruby, Rails 2023-04-27 N/A 7.5 HIGH
A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately.
CVE-2020-10663 6 Apple, Debian, Fedoraproject and 3 more 6 Macos, Debian Linux, Fedora and 3 more 2023-03-28 5.0 MEDIUM 7.5 HIGH
The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.
CVE-2016-2338 2 Debian, Ruby-lang 2 Debian Linux, Ruby 2023-03-01 N/A 9.8 CRITICAL
An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby. In Psych::Emitter start_document function heap buffer "head" allocation is made based on tags array length. Specially constructed object passed as element of tags array can increase this array size after mentioned allocation and cause heap overflow.
CVE-2013-2119 3 Phusion, Redhat, Ruby-lang 3 Passenger, Openshift, Ruby 2023-02-13 4.6 MEDIUM N/A
Phusion Passenger gem before 3.0.21 and 4.0.x before 4.0.5 for Ruby allows local users to cause a denial of service (prevent application start) or gain privileges by pre-creating a temporary "config" file in a directory with a predictable name in /tmp/ before it is used by the gem.
CVE-2008-2376 2 Redhat, Ruby-lang 2 Fedora 8, Ruby 2023-02-13 7.5 HIGH N/A
Integer overflow in the rb_ary_fill function in array.c in Ruby before revision 17756 allows context-dependent attackers to cause a denial of service (crash) or possibly have unspecified other impact via a call to the Array#fill method with a start (aka beg) argument greater than ARY_MAX_SIZE. NOTE: this issue exists because of an incomplete fix for other closely related integer overflows.
CVE-2008-4310 1 Ruby-lang 1 Ruby 2023-02-13 7.8 HIGH N/A
httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request. NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.