Description
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.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1341
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1301
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/05/17/1
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1327484
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
Scores
CVSS v3
8.1
EPSS
0.0179
EPSS Percentile
83.0%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-284
Status
published
Products (4)
linux/linux_kernel-rt
< 3.10.0
novell/suse_linux_enterprise_real_time_extension
12.0 sp1
redhat/enterprise_linux_for_real_time
7
redhat/enterprise_linux_for_real_time_for_nfv
7
Published
Jun 27, 2016
Tracked Since
Feb 18, 2026