Tracker / CVE-2015-3636
CVE-2015-3636
Medium 4.9
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.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| linux | linux_kernel · … → 4.0.2 |
| redhat | enterprise_linux |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.