Vulnerability in ruby1.8 - Buffer underrun and escape sequence injection
Summary
DLA-1113-1: ruby1.8 - security update. Affects ruby1.8 versions < 1.8.7.358-7.1+deb7u4. Fixed in 1.8.7.358-7.1+deb7u4. How to fix ↓
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Background
ruby1.8 is a package in the Debian 7 Wheezy LTS distribution. It is an implementation of the Ruby programming language version 1.8. This package is widely used for developing and running Ruby applications. However, it has been found to have vulnerabilities that could be exploited by attackers.
Vulnerability Detail
The first vulnerability, identified as CVE-2017-0898, is a buffer underrun vulnerability in the Kernel.sprintf function. This vulnerability could allow an attacker to overwrite memory beyond the intended buffer, potentially leading to arbitrary code execution or a denial of service.
The second vulnerability, identified as CVE-2017-10784, is an escape sequence injection vulnerability in the Basic authentication of WEBrick. An attacker could inject escape sequences in the authentication process, leading to potential security bypass or injection attacks.
How To Fix
Minimum fixed version
1.8.7.358-7.1+deb7u4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ruby1.8Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no specific workarounds mentioned for these vulnerabilities. The recommended approach is to apply the security update as soon as possible.
Conclusion
In conclusion, the ruby1.8 package in Debian 7 Wheezy LTS has been found to have two vulnerabilities: a buffer underrun vulnerability in Kernel.sprintf and an escape sequence injection vulnerability in the Basic authentication of WEBrick. To mitigate these vulnerabilities, it is recommended to upgrade to version 1.8.7.358-7.1+deb7u4. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for ruby1.8 →
FAQ
The buffer underrun vulnerability in Kernel.sprintf could allow an attacker to overwrite memory beyond the intended buffer. This could potentially lead to arbitrary code execution or a denial of service.
An attacker can exploit the escape sequence injection vulnerability in the Basic authentication of WEBrick by injecting escape sequences during the authentication process. This could lead to security bypass or injection attacks.
There are no known public exploits for these vulnerabilities at the time of this advisory. However, it is important to apply the security update to protect against potential attacks.
The vulnerabilities affect ruby1.8 versions prior to 1.8.7.358-7.1+deb7u4. It is recommended to upgrade to the fixed version to mitigate the vulnerabilities.
You can find more information about Debian LTS security advisories, including how to apply updates and frequently asked questions, on the Debian LTS wiki: https://wiki.debian.org/LTS
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