Integer overflow in the ping_init_sock function in net/ipv4/ping.c in the Linux kernel through 3.14.1 allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that leverages an improperly managed reference counter.
CVSS Severity (version 2.0):
Impact Subscore: 10.0
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
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Patch Information; Exploit
[oss-security] 20140411 Re: CVE request -- Linux kernel: net: ping: refcount issue in ping_init_sock() function
[linux-kernel] 20140411 net: ipv4: current group_info should be put after using.