CVE-2016-3707

EUVD-2016-4728

27.06.2016, 10:59

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 82%

Affected Products (NVD)

Vendor	Product	Version
linux	linux_kernel-rt	𝑥 ≤ 3.10.0
novell	suse_linux_enterprise_real_time_extension	12.0:sp1

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

linux

bookworm	6.1.106-3 fixed
bookworm (security)	6.1.112-1 fixed
bullseye	5.10.223-1 fixed
bullseye (security)	5.10.226-1 fixed
sid	6.11.6-1 fixed
trixie	6.11.5-1 fixed

Ubuntu Releases

Ubuntu Product

Codename

linux

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	not-affected
xenial	not-affected

linux-aws

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	not-affected
xenial	not-affected

linux-aws-5.0

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-aws-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-aws-hwe

bionic	dne
eoan	dne
focal	dne
trusty	dne
xenial	not-affected

linux-azure

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	not-affected
xenial	not-affected

linux-azure-4.15

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-azure-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-azure-edge

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-gcp

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	dne
xenial	not-affected

linux-gcp-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-gcp-edge

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-gke-4.15

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-gke-5.0

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-gke-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-hwe

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	not-affected

linux-hwe-edge

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	not-affected

linux-kvm

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	dne
xenial	not-affected

linux-lts-trusty

bionic	dne
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-lts-xenial

bionic	dne
eoan	dne
focal	dne
trusty	not-affected
xenial	dne

linux-oem

bionic	not-affected
eoan	not-affected
focal	dne
trusty	dne
xenial	not-affected

linux-oem-5.6

bionic	dne
eoan	dne
focal	not-affected
trusty	dne
xenial	dne

linux-oem-osp1

bionic	not-affected
eoan	not-affected
focal	dne
trusty	dne
xenial	dne

linux-oracle

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	dne
xenial	not-affected

linux-oracle-5.0

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-oracle-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-raspi

bionic	dne
eoan	dne
focal	not-affected
trusty	dne
xenial	dne

linux-raspi2

bionic	not-affected
eoan	not-affected
focal	not-affected
trusty	dne
xenial	not-affected

linux-raspi2-5.3

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	dne

linux-riscv

bionic	dne
eoan	dne
focal	not-affected
trusty	dne
xenial	dne

linux-snapdragon

bionic	not-affected
eoan	dne
focal	dne
trusty	dne
xenial	not-affected

Common Weakness Enumeration

CWE-284 - Improper Access Control
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References

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