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2.1

Linux kernel can freeze or crash from local misuse

CVE-2006-5619 · published 20 years ago
Summary

A component that manages IPv6 flow labels in Linux kernel versions 2.6 through 2.6.18 can get stuck in an endless loop when a local user performs certain actions. This can cause the system to become unresponsive or crash. Update the kernel to a patched version or restrict untrusted local accounts to prevent the issue.

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
121 more version ranges
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
Original advisory text
The seqfile handling (ip6fl_get_n function in ip6_flowlabel.c) in Linux kernel 2.6 up to 2.6.18-stable allows local users to cause a denial of service (hang or oops) via unspecified manipulations t...
The seqfile handling (ip6fl_get_n function in ip6_flowlabel.c) in Linux kernel 2.6 up to 2.6.18-stable allows local users to cause a denial of service (hang or oops) via unspecified manipulations that trigger an infinite loop while searching for flowlabels.
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
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-399Resource Management Errors
Timeline
Published31 Oct 2006
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2006-5619 · NVD
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