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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Use-after-free vulnerability in net/ipv4/tcp_input.c in the Linux kernel 2.6 before 2.6.20, when IPV6_RECVPKTINFO is set on a listening socket, allows remote attackers to cause a denial of service (kernel panic) via a SYN packet while the socket is in a listening (TCP_LISTEN) state, which is not properly handled and causes the skb structure to be freed.
Red Hat is aware of this issue and is tracking it via the following bug:
This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise MRG, as it was fixed since version v2.6.20-rc6. It was addressed in Red Hat Enterprise Linux 5 in the kernel package via https://rhn.redhat.com/errata/RHSA-2010-0178.html. A future update in Red Hat Enterprise Linux 3 and 4 may address this flaw.
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https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9878 [No Types Assigned]
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:9878 [No Types Assigned]