Vulnerability in Linux Kernel-Rt
CVE-2016-3707
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.
EPSS: 0.034 (88.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel-rt
- Novell Suse_linux_enterprise_real_time_extension — versions 12.0
- Redhat Enterprise_linux_for_real_time — versions 7
- Redhat Enterprise_linux_for_real_time_for_nfv — versions 7
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_CONFIRM, Issue Tracking)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2016-3707?
- CVE-2016-3707 is a high-severity vulnerability in Linux Kernel-Rt, classified under Improper Access Control. CVSS score: 8.1/10. Published 2016-06-27.
- How severe is CVE-2016-3707?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2016-3707 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.