OSVDB ID: 33028 Title: Linux Kernel conntrack IPv6 Packet Reassembly Ruleset Bypass |
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Description |
The Linux Kernel contains a flaw that may allows a remote attacker to bypass certain netfilter rulesets. The issue is due to the 'nf_conntrack' function not copying 'nfctinfo' information resulting in IPv6 fragments are treated as established and could allow an attacker to bypass a ruleset that accepts established packets. |
Classification |
Location:
Remote / Network Access
Attack Type: Infrastructure Impact: Loss of Integrity Exploit: Exploit Unknown Disclosure: OSVDB Verified, Vendor Verified |
Solution |
Upgrade to version 2.6.20.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds. |
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Credit |
Unknown or Incomplete |