The ping_unhash function in net/ipv4/ping.c in the Linux kernel before
4.0.3 does not initialize a certain list data structure during an
unhash operation, which allows local users to gain privileges or cause
a denial of service (use-after-free and system crash) by leveraging
the ability to make a SOCK_DGRAM socket system call for the
IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect
system call after a disconnect.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20150502 CVE request for a fixed bug existed in all versions of linux kernel from KeenTeam
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