The ping_unhash function in net/ipv4/ping.c in the Linux kernel prior to 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.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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linux linux kernel |
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redhat enterprise linux 6.0 |
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debian debian linux 7.0 |
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canonical ubuntu linux 12.04 |