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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.034 (88.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Linux Kernel-Rt
- Novell SUSE Linux Enterprise Real Time Extension — versions 12.0
- Red Hat Enterprise Linux For Real Time — versions 7
- Red Hat Enterprise Linux For Real Time Nfv — versions 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2016:1341 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html (vendor-advisory)
- access.redhat.com/errata/RHSA-2016:1301 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/05/17/1 (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html (vendor-advisory, Third Party Advisory)
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.