Test ID:	1.3.6.1.4.1.25623.1.0.704031
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-4031-1)
Summary:	The remote host is missing an update for the Debian 'ruby2.3' package(s) announced via the DSA-4031-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'ruby2.3' package(s) announced via the DSA-4031-1 advisory. Vulnerability Insight: Several vulnerabilities have been discovered in the interpreter for the Ruby language. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2017-0898 aerodudrizzt reported a buffer underrun vulnerability in the sprintf method of the Kernel module resulting in heap memory corruption or information disclosure from the heap. CVE-2017-0903 Max Justicz reported that RubyGems is prone to an unsafe object deserialization vulnerability. When parsed by an application which processes gems, a specially crafted YAML formatted gem specification can lead to remote code execution. CVE-2017-10784 Yusuke Endoh discovered an escape sequence injection vulnerability in the Basic authentication of WEBrick. An attacker can take advantage of this flaw to inject malicious escape sequences to the WEBrick log and potentially execute control characters on the victim's terminal emulator when reading logs. CVE-2017-14033 asac reported a buffer underrun vulnerability in the OpenSSL extension. A remote attacker can take advantage of this flaw to cause the Ruby interpreter to crash leading to a denial of service. For the stable distribution (stretch), these problems have been fixed in version 2.3.3-1+deb9u2. We recommend that you upgrade your ruby2.3 packages. Affected Software/OS: 'ruby2.3' package(s) on Debian 9. Solution: Please install the updated package(s). CVSS Score: 9.3 CVSS Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-0898 BugTraq ID: 100862 http://www.securityfocus.com/bid/100862 Debian Security Information: DSA-4031 (Google Search) https://www.debian.org/security/2017/dsa-4031 https://security.gentoo.org/glsa/201710-18 https://github.com/mruby/mruby/issues/3722 https://hackerone.com/reports/212241 https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/ https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html RedHat Security Advisories: RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2017:3485 RedHat Security Advisories: RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0378 RedHat Security Advisories: RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0583 RedHat Security Advisories: RHSA-2018:0585 https://access.redhat.com/errata/RHSA-2018:0585 http://www.securitytracker.com/id/1039363 https://usn.ubuntu.com/3685-1/ Common Vulnerability Exposure (CVE) ID: CVE-2017-0903 BugTraq ID: 101275 http://www.securityfocus.com/bid/101275 http://blog.rubygems.org/2017/10/09/2.6.14-released.html http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49 https://hackerone.com/reports/274990 https://usn.ubuntu.com/3553-1/ Common Vulnerability Exposure (CVE) ID: CVE-2017-10784 BugTraq ID: 100853 http://www.securityfocus.com/bid/100853 http://www.securitytracker.com/id/1042004 https://usn.ubuntu.com/3528-1/ Common Vulnerability Exposure (CVE) ID: CVE-2017-14033 BugTraq ID: 100868 http://www.securityfocus.com/bid/100868
Copyright	Copyright (C) 2017 Greenbone AG

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