CVE-2008-3530
HighSummary
W jądrze systemów FreeBSD w wersjach od 6.3 do 7.1 oraz NetBSD od 3.0 do 4.0 występuje luka, która nieprawidłowo sprawdza proponowany nowy MTU w komunikacie ICMPv6 'Packet Too Big'. To pozwala zdalnym atakującym na wywołanie awarii systemu (panic) poprzez odpowiednio skonstruowany komunikat.
Risk Assessment
Luka ta stwarza ryzyko wystąpienia ataków typu denial of service, co może prowadzić do przestojów w działaniu systemów i usług w organizacji.
Recommendation
Zaleca się aktualizację systemów do najnowszych wersji, które zawierają poprawki zabezpieczeń eliminujące tę podatność.
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Original NVD description (English source)
sys/netinet6/icmp6.c in the kernel in FreeBSD 6.3 through 7.1, NetBSD 3.0 through 4.0, and possibly other operating systems does not properly check the proposed new MTU in an ICMPv6 Packet Too Big Message, which allows remote attackers to cause a denial of service (panic) via a crafted Packet Too Big Message.