Integer Overflow in ppp - Security Update
Summary
DSA-3079-1: ppp - security update. Affects ppp versions < 2.4.5-5.1+deb7u1. Fixed in 2.4.5-5.1+deb7u1. How to fix ↓
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Background
ppp is an implementation of the Point-to-Point Protocol, which is used for establishing a direct connection between two network nodes. It provides a means for transmitting data packets over serial links, such as telephone lines or Ethernet connections. The ppp package is commonly used in various Linux distributions, including Debian 7 (wheezy).
Vulnerability Detail
A vulnerability has been discovered in ppp that allows a local attacker to gain root privileges. The issue is an integer overflow in the routine responsible for parsing user-supplied options. By exploiting this vulnerability, an attacker can manipulate the input in such a way that it triggers the overflow, leading to arbitrary code execution with root privileges. This can result in a complete compromise of the affected system.
How To Fix
Minimum fixed version
2.4.5-5.1+deb7u1
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 integer overflow vulnerability in ppp can allow a local attacker to gain root privileges and potentially compromise the affected system. It is recommended to upgrade the ppp package to the fixed version provided by the Linux distribution. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for ppp →
FAQ
ppp stands for Point-to-Point Protocol. It is an implementation used for establishing a direct connection between two network nodes.
An integer overflow occurs when an arithmetic operation results in a value that exceeds the maximum representable value for the data type used to store the result. In the case of this vulnerability, the integer overflow can lead to memory corruption and potentially allow an attacker to execute arbitrary code.
A local attacker can manipulate user-supplied options in a way that triggers the integer overflow. By carefully crafting the input, the attacker can execute arbitrary code with root privileges, potentially compromising the entire system.
No, only versions prior to 2.4.5-5.1+deb7u1 for Debian 7 (wheezy) are affected. The vulnerability has been fixed in later versions.
No, there is no known workaround. It is crucial to apply the security update to protect against exploitation.
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