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.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=b04c46190219a4f845e46a459e3102137b7f6cac | exploit patch vendor advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1086730 | issue tracking third party advisory patch |
| http://www.securitytracker.com/id/1030769 | vdb entry third party advisory |
| http://secunia.com/advisories/59386 | third party advisory broken link |
| https://lkml.org/lkml/2014/4/10/736 | mailing list patch vendor advisory |
| http://secunia.com/advisories/59599 | third party advisory broken link |
| http://www.debian.org/security/2014/dsa-2926 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/66779 | vdb entry third party advisory |
| http://www.openwall.com/lists/oss-security/2014/04/11/4 | mailing list third party advisory patch |