Vulnerability in libx11 - Regression Update

libx11 Updated 02 Oct 2025

Summary

14/01/2017
N/A
Yes i
Unrated
Not published

DLA-684-2: libx11 - regression update. Affects libx11 versions < 2:1.5.0-1+deb7u4. Fixed in 2:1.5.0-1+deb7u4. How to fix ↓

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Background

libx11 is the X11 client-side library used for communication between X clients and the X server. It provides functions and utilities for handling X protocol requests, managing windows, and interacting with the X server. This vulnerability affects libx11 in Debian 7 Wheezy.

Vulnerability Detail

The vulnerability in libx11 arises from insufficient validation of data received from the X server. This can lead to out-of-bounds memory read (XGetImage()) or write (XListFonts()) operations. An attacker could exploit this vulnerability to read sensitive information from memory or potentially execute arbitrary code.

How To Fix

Minimum fixed version

2:1.5.0-1+deb7u4

This is the first release that contains the fix.

sudo apt-get install --only-upgrade libx11

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in libx11 can be mitigated by upgrading the package to the recommended version. For further support on vulnerability remediation, you can reach out to DevNack.com.

See every vulnerability recorded for libx11 →

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FAQ

libx11 is the X11 client-side library used for communication between X clients and the X server.

The vulnerability can lead to out-of-bounds memory read or write operations, potentially allowing an attacker to read sensitive information or execute arbitrary code.

The vulnerability affects libx11 in Debian 7 Wheezy.

To fix this vulnerability, upgrade the libx11 package to version 2:1.5.0-1+deb7u3 or later.

No specific workaround has been mentioned for this vulnerability.

Related vulnerabilities

Recent vulnerabilities recorded for libx11.

How To Fix

Minimum fixed version

2:1.5.0-1+deb7u4

This is the first release that contains the fix.

sudo apt-get install --only-upgrade libx11

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