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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.39% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- linux/linux kernel-rt · redhat/enterprise linux for real time · redhat/enterprise linux for real time for nfv · novell/suse linux enterprise real time extension
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- 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-2016:1301Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1341Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1327484Issue Tracking
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory
- 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-2016:1301Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1341Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1327484Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.