Denial of Service Vulnerability in Linux Kernel - CVE-2013-4348
Summary
DEBIAN-CVE-2013-4348: The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel through 3.12 allows remote attackers to cause a denial of service (infinite loop) via a small value in the IHL field of a packet with IPIP en... Affects linux versions < 3.11.6-2. Fixed in 3.11.6-2. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, providing essential services for hardware and software management. It is known for its robustness and flexibility, supporting a wide range of devices and applications. However, vulnerabilities can arise, such as CVE-2013-4348, which affects the skb_flow_dissect function in the net/core/flow_dissector.c file, allowing for potential denial of service attacks.
Vulnerability Detail
CVE-2013-4348 is a vulnerability in the Linux kernel that allows remote attackers to cause a denial of service through an infinite loop. This occurs when a small value is provided in the IHL field of a packet with IPIP encapsulation, leading to system instability and potential downtime. The vulnerability affects various Debian versions of the Linux package, making it critical for users to address it promptly.
How To Fix
Minimum fixed version
3.11.6-2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. It is recommended to apply the patch as soon as possible to mitigate the risk.
Conclusion
CVE-2013-4348 is a significant vulnerability in the Linux kernel that can lead to denial of service attacks. Users are strongly advised to update their systems to the patched version to ensure protection against this issue. Regular monitoring and timely updates are essential for maintaining system security.
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FAQ
CVE-2013-4348 is a vulnerability in the Linux kernel that can lead to a denial of service due to an infinite loop caused by specific packet values.
If exploited, this vulnerability can cause your system to become unresponsive, leading to potential downtime and service interruptions.
Debian versions 11, 12, 13, and 14 are affected by this vulnerability in the Linux package.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
While there are no specific workarounds, it is crucial to plan for an update as soon as possible to mitigate the risk of exploitation.
References
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