Buffer Overflow Vulnerability in ppp
Summary
DSA-3228-1: ppp - security update. Affects ppp versions < 2.4.5-5.1+deb7u2. Fixed in 2.4.5-5.1+deb7u2. How to fix ↓
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Background
ppp is a daemon that implements the Point-to-Point Protocol, which is used for establishing network connections over various types of physical links. It provides authentication, encryption, and compression capabilities. The ppp package is commonly used in Debian 7 (wheezy) and other distributions. However, a buffer overflow vulnerability has been discovered in ppp when communicating with a RADIUS server.
Vulnerability Detail
The buffer overflow vulnerability in ppp allows unauthenticated users to cause a denial-of-service by crashing the daemon. This occurs due to improper handling of input from a RADIUS server, which can lead to the overflow of a buffer. An attacker can exploit this vulnerability by sending specially crafted packets to the ppp daemon, causing it to crash and potentially disrupting network connectivity.
How To Fix
Minimum fixed version
2.4.5-5.1+deb7u2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade pppTip — 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 as soon as possible to mitigate the risk of exploitation.
Conclusion
The buffer overflow vulnerability in ppp can be mitigated by upgrading to the latest version of the ppp package. It is crucial to apply this security update to ensure the stability and security of network connections. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for ppp →
FAQ
ppp is a daemon that implements the Point-to-Point Protocol, used for establishing network connections over various types of physical links.
A buffer overflow occurs when a program writes more data into a buffer than it can hold, causing the excess data to overwrite adjacent memory locations.
An attacker can exploit this vulnerability by sending specially crafted packets to the ppp daemon, causing it to crash and potentially disrupting network connectivity.
The buffer overflow vulnerability in ppp can lead to a denial-of-service condition, where the ppp daemon crashes and network connectivity is disrupted.
To fix this vulnerability, upgrade the ppp package to the recommended version for your distribution. Instructions can be found in the 'how_to_fix' section of this report.
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