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4.9

Linux kernel can crash when handling multicast route

CVE-2006-1525 · published 20 years ago
Summary

The Linux kernel version 2.6 up to 2.6.16.7 may stop working if a local user asks for a network route to a multicast address. This causes the system to panic and become unavailable. Update the kernel to a newer version or apply the provided patches to prevent the crash.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
linux linux_kernel 2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.6.6
2.6.7
2.6.8
2.6.8.1
2.6.9
2.6.10
50 more version ranges
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
Original advisory text
ip_route_input in Linux kernel 2.6 before 2.6.16.8 allows local users to cause a denial of service (panic) via a request for a route for a multicast IP address, which triggers a null dereference.
ip_route_input in Linux kernel 2.6 before 2.6.16.8 allows local users to cause a denial of service (panic) via a request for a route for a multicast IP address, which triggers a null dereference.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-399Resource Management Errors
Timeline
Published19 Apr 2006
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2006-1525 · NVD
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