CVE-2016-3707
Published: 27 June 2016
The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.
Notes
Author | Note |
---|---|
sbeattie | only affects kernels with PREEMPT_RT applied and enabled, which is not the case in Ubuntu kernels. |
Priority
Status
Package | Release | Status |
---|---|---|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Not vulnerable
(rt kernels only)
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
upstream |
Not vulnerable
(rt kernels only)
|
|
bionic |
Not vulnerable
(rt kernels only)
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
xenial |
Does not exist
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Not vulnerable
(rt kernels only)
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
(rt kernels only)
|
bionic |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
xenial |
Not vulnerable
(rt kernels only)
|
bionic |
Not vulnerable
(rt kernels only)
|
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-riscv Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Not vulnerable
(rt kernels only)
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Not vulnerable
(rt kernels only)
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Not vulnerable
(rt kernels only)
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(rt kernels only)
|
eoan |
Not vulnerable
(rt kernels only)
|
|
focal |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
|
linux-raspi Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(rt kernels only)
|
|
trusty |
Does not exist
|
|
upstream |
Not vulnerable
(rt kernels only)
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.1 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3707
- https://lwn.net/Articles/448790/
- https://bugzilla.redhat.com/show_bug.cgi?id=1327484
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- http://www.openwall.com/lists/oss-security/2016/05/17/1
- https://access.redhat.com/errata/RHSA-2016:1301
- https://access.redhat.com/errata/RHSA-2016:1341
- NVD
- Launchpad
- Debian