CVE-2015-3636
Medium
Description
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.
SeverityMedium
CVSS4.9
Exploit probability—
Product
Linux Kernel
PublishedAug 6, 2015
First seenAug 6, 2015
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v ≤ 4.0.2 | — |
| debian debian_linux | 7.0 | — |
| redhat enterprise_linux | 6.0 | — |
| canonical ubuntu_linux | 12.04 | — |
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