Upstream information

CVE-2016-3707 at MITRE


The icmp_check_sysrq function in net/ipv4/icmp.c in the 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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6.8
Vector AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 8.1
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3
SUSE Bugzilla entry: 980246 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Real Time Extension 11 SP4
  • kernel-rt >= 3.0.101.rt130-57.1
  • kernel-rt-base >= 3.0.101.rt130-57.1
  • kernel-rt-devel >= 3.0.101.rt130-57.1
  • kernel-rt_trace >= 3.0.101.rt130-57.1
  • kernel-rt_trace-base >= 3.0.101.rt130-57.1
  • kernel-rt_trace-devel >= 3.0.101.rt130-57.1
  • kernel-source-rt >= 3.0.101.rt130-57.1
  • kernel-syms-rt >= 3.0.101.rt130-57.1
SUSE Linux Enterprise Real Time Extension 12 SP1
  • kernel-compute >= 3.12.61-60.18.1
  • kernel-compute-base >= 3.12.61-60.18.1
  • kernel-compute-devel >= 3.12.61-60.18.1
  • kernel-compute_debug >= 3.12.61-60.18.1
  • kernel-compute_debug-devel >= 3.12.61-60.18.1
  • kernel-devel-rt >= 3.12.61-60.18.1
  • kernel-rt >= 3.12.61-60.18.1
  • kernel-rt-base >= 3.12.61-60.18.1
  • kernel-rt-devel >= 3.12.61-60.18.1
  • kernel-rt_debug >= 3.12.61-60.18.1
  • kernel-rt_debug-devel >= 3.12.61-60.18.1
  • kernel-source-rt >= 3.12.61-60.18.1
  • kernel-syms-rt >= 3.12.61-60.18.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Real Time Extension 11 SP4 kernel-rt Released
SUSE Linux Enterprise Real Time Extension 12 SP1 kernel-rt Released