- -------------------------------------------------------------------------
Debian Security Advisory DSA-4031-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 11, 2017                     https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : ruby2.3
CVE ID         : CVE-2017-0898 CVE-2017-0903 CVE-2017-10784 CVE-2017-14033
Debian Bug     : 875928 875931 875936 879231

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.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-4031-1: ruby2.3 security update

November 11, 2017
Several vulnerabilities have been discovered in the interpreter for the Ruby language

Summary

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.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

Severity
Several vulnerabilities have been discovered in the interpreter for the
Ruby language. The Common Vulnerabilities and Exposures project
identifies the following problems:

Related News

23.Tablet Connections Esm H320
2 - 3 min read
The release of Ubuntu 24.04 LTS , also known as Noble Numbat, brings various security enhancements and exciting new features . These improvements
4.Lock AbstractDigital Esm H320
2 - 3 min read
Tails 6.2 is a new Linux distribution release that expands its multilingual support and improves security features. The distribution is a
19.Laptop Bed Esm H320
2 - 3 min read
AlmaLinux 9.4 beta has been released and provides compelling reasons to consider it for desktop usage. While AlmaLinux is primarily known as a
32.Lock Code Circular Esm H320
2 - 3 min read
Linux admins and security practitioners face significant challenges in keeping their Linux systems secure amidst the constant threat of kernel bugs.
1.Penguin Landscape Esm H320
2 - 3 min read
A significant security threat, known as the Spectre v2 exploit, has been observed targeting Linux systems running on modern Intel processors. Let's
10.FingerPrint Locks Esm H320
2 - 3 min read
The recent release of I2P 2.5.0 , an anonymous P2P network that protects against online censorship, surveillance, and monitoring, has brought a slew
24.Key Code Esm H320
2 - 3 min read
The Akira ransomware group has extorted approximately $42 million from over 250 victims since January 1, 2024. The group initially focused on
5.ShakingHands Esm H320
2 - 3 min read
At The Linux Foundation's Open Source Summit North America , Linus Torvalds, the creator of Linux, discussed various topics related to Linux
Sign Up