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CVE-2019-16254

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2021-2230-01
Posted Jun 3, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2230-01 - Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Issues addressed include HTTP request smuggling, HTTP response splitting, denial of service, information leakage, and insecure permissions vulnerabilities.

tags | advisory, web, denial of service, vulnerability, ruby
systems | linux, redhat
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255, CVE-2019-3881, CVE-2020-10663, CVE-2020-10933, CVE-2020-25613, CVE-2021-28965
MD5 | e3874da2921faf9eb845a84c5bf2d476
Red Hat Security Advisory 2021-2104-01.tt
Posted May 25, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2104-01.tt - Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Issues addressed include HTTP request smuggling, HTTP response splitting, denial of service, and information leakage vulnerabilities.

tags | advisory, web, denial of service, vulnerability, ruby
systems | linux, redhat
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255, CVE-2020-10663, CVE-2020-10933, CVE-2020-25613, CVE-2021-28965
MD5 | 2a9021fba3ddb0f54f14cb9a738b0b04
Gentoo Linux Security Advisory 202003-06
Posted Mar 13, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-6 - Multiple vulnerabilities have been found in Ruby, the worst of which could lead to the remote execution of arbitrary code. Versions less than 2.4.9:2.4 are affected.

tags | advisory, remote, arbitrary, vulnerability, ruby
systems | linux, gentoo
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255
MD5 | 00261b5f5dfd330247bf1c17eb43ce1b
Debian Security Advisory 4586-1
Posted Dec 17, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4586-1 - Several vulnerabilities have been discovered in the interpreter for the Ruby language, which could result in unauthorized access by bypassing intended path matchings, denial of service, or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability, ruby
systems | linux, debian
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255
MD5 | 68ede89156d4849c8bb9cf6e3a6e0efa
Debian Security Advisory 4587-1
Posted Dec 17, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4587-1 - Several vulnerabilities have been discovered in the interpreter for the Ruby language, which could result in unauthorized access by bypassing intended path matchings, denial of service, or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability, ruby
systems | linux, debian
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255
MD5 | b45af1b73ba16aaa39a973fb99fa32f9
Ubuntu Security Notice USN-4201-1
Posted Nov 26, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4201-1 - It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this issue to pass path matching what can lead to an unauthorized access. It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could use this issue to cause a denial of service. It was discovered that Ruby incorrectly handled certain HTTP headers. An attacker could possibly use this issue to execute arbitrary code. Various other issues were also addressed.

tags | advisory, web, denial of service, arbitrary, ruby
systems | linux, ubuntu
advisories | CVE-2019-15845, CVE-2019-16201, CVE-2019-16254, CVE-2019-16255
MD5 | 5688b66556ca8a52b217f5c893fce8a2
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