Vulnerability in libx11 - security update
Summary
DLA-684-1: libx11 - security update. Affects libx11 versions < 2:1.5.0-1+deb7u3. Fixed in 2:1.5.0-1+deb7u3. How to fix ↓
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Background
libx11 is the X11 client-side library used for communication between X servers and X clients. It provides functions and utilities for handling X11 protocol requests and events. The library is an integral part of the X Window System, allowing applications to interact with the X server and display graphical user interfaces. However, a vulnerability has been discovered in libX11 that can lead to out-of-boundary memory read or write when processing data from the X server.
Vulnerability Detail
The vulnerability in libX11 arises from insufficient validation of data received from the X server. This can result in an out-of-boundary memory read (XGetImage()) or write (XListFonts()). An attacker could exploit this vulnerability to read sensitive information from memory or modify memory contents, potentially leading to remote code execution or denial of service attacks. The vulnerability affects libx11 version 2:1.5.0-1+deb7u3 and earlier.
How To Fix
Minimum fixed version
2:1.5.0-1+deb7u3
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libx11Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in libX11 can lead to out-of-boundary memory read or write, posing a potential risk of remote code execution or denial of service attacks. It is crucial to upgrade the libx11 package to the fixed version to mitigate this vulnerability. For further support and assistance in vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for libx11 →
FAQ
libx11 is the X11 client-side library used for communication between X servers and X clients in the X Window System.
The vulnerability can lead to out-of-boundary memory read or write, potentially allowing an attacker to read sensitive information or modify memory contents.
To fix this vulnerability, upgrade the libx11 package to version 2:1.5.0-1+deb7u3 or later.
No specific workarounds have been mentioned for this vulnerability.
More information about Debian LTS security advisories, including how to apply updates and frequently asked questions, can be found at the Debian LTS wiki.
Related vulnerabilities
Recent vulnerabilities recorded for libx11.
