| Name | CVE-2015-3636 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3290-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | fixed |
| buster (security) | 4.19.289-2 | fixed | |
| bullseye | 5.10.197-1 | fixed | |
| bullseye (security) | 5.10.191-1 | fixed | |
| bookworm | 6.1.55-1 | fixed | |
| bookworm (security) | 6.1.52-1 | fixed | |
| trixie | 6.5.10-1 | fixed | |
| sid | 6.5.13-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | wheezy | 3.2.68-1+deb7u2 | DSA-3290-1 | ||
| linux | source | jessie | 3.16.7-ckt11-1 | |||
| linux | source | (unstable) | 4.0.2-1 | |||
| linux-2.6 | source | squeeze | (not affected) | |||
| linux-2.6 | source | (unstable) | (unfixed) |
[squeeze] - linux-2.6 <not-affected> (Vulnerable code not present)
Upstream fix: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a134f083e79fb4c3d0a925691e732c56911b4326 (v4.1-rc2)
https://lkml.org/lkml/2011/5/13/382