Memory Leak in libvncserver - Security Update
Summary
DLA-1977-1: libvncserver - security update. Affects libvncserver versions < 0.9.9+dfsg2-6.1+deb8u6. Fixed in 0.9.9+dfsg2-6.1+deb8u6. How to fix ↓
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Background
libvncserver is a library that provides a VNC server functionality, allowing users to remotely access and control graphical desktops. It is commonly used in various applications and systems that require remote desktop access. However, a vulnerability has been discovered in libvncserver that could lead to information disclosure.
Vulnerability Detail
The vulnerability in libvncserver is categorized as a memory leak (CWE-655). It exists in the VNC server code and can be exploited by an attacker to read stack memory. This could potentially result in the disclosure of sensitive information stored in the stack, which may include passwords, cryptographic keys, or other confidential data. The memory leak allows an unauthorized party to access this information, compromising the security and integrity of the system.
How To Fix
Minimum fixed version
0.9.9+dfsg2-6.1+deb8u6
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libvncserverTip — 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. The recommended solution is to apply the security update as mentioned in the 'how_to_fix' section.
Conclusion
The memory leak vulnerability in libvncserver can lead to the disclosure of sensitive information stored in the stack. To mitigate this risk, it is crucial to upgrade the libvncserver package to the recommended version. Failure to do so may result in unauthorized access to confidential data. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for libvncserver →
FAQ
libvncserver is a library that provides VNC server functionality, allowing remote access and control of graphical desktops.
The vulnerability allows an attacker to read stack memory, potentially leading to the disclosure of sensitive information stored in the stack.
To fix this vulnerability, you need to upgrade the libvncserver package to version 0.9.9+dfsg2-6.1+deb8u6 or later.
No specific workaround has been mentioned for this vulnerability. It is recommended to apply the security update.
You can find more information about Debian LTS security advisories, including how to apply updates and frequently asked questions, at https://wiki.debian.org/LTS
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