Buffer overflow in mactelnet - security update
Summary
DLA-639-1: mactelnet - security update. Affects mactelnet versions < 0.3.4-1+deb7u1. Fixed in 0.3.4-1+deb7u1. How to fix ↓
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Background
MAC-Telnet is a client-server protocol that allows remote access to a Macintosh computer's command-line interface. The mactelnet package provides a client implementation of this protocol. It is vulnerable to a buffer overflow in the handle_packet function in mactelnet.c. This vulnerability allows remote TELNET servers to execute arbitrary code by sending a long string in an MT_CPTYPE_ENCRYPTIONKEY control packet.
Vulnerability Detail
The vulnerability, identified as CVE-2016-7115, arises due to a buffer overflow in the handle_packet function of mactelnet.c. By exploiting this flaw, remote TELNET servers can execute arbitrary code on the client machine. The vulnerability is triggered when a long string is sent in an MT_CPTYPE_ENCRYPTIONKEY control packet. This can lead to unauthorized access, data manipulation, or even complete compromise of the affected system.
How To Fix
Minimum fixed version
0.3.4-1+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade mactelnetTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the security update to ensure the system is protected against potential exploitation.
Conclusion
The buffer overflow vulnerability in mactelnet.c can be exploited by remote TELNET servers to execute arbitrary code on the client machine. To mitigate this risk, it is crucial to upgrade the mactelnet package to version 0.3.4-1+deb7u1 or later. No known workarounds are available for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for mactelnet →
FAQ
MAC-Telnet is a client-server protocol that allows remote access to a Macintosh computer's command-line interface.
This vulnerability allows remote TELNET servers to execute arbitrary code on the client machine, potentially leading to unauthorized access, data manipulation, or complete compromise of the system.
To fix this vulnerability, it is recommended to upgrade the mactelnet package to version 0.3.4-1+deb7u1 or later.
There is no known workaround for this vulnerability. It is crucial to apply the security update to mitigate the risk.
More information about Debian LTS security advisories, including how to apply updates and frequently asked questions, can be found at: https://wiki.debian.org/LTS
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