CVE-2016-7117
A use-after-free vulnerability was found in the kernel's socket recvmmsg subsystem. This may allow remote attackers to corrupt memory and may allow execution of arbitrary code. This corruption takes place during the error handling routines within __sys_recvmmsg() function.
Find out more about CVE-2016-7117 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 5, 6, 7, MRG-2 and realtime and may be addressed in a future update.
CVSS v2 metrics
| Base Score | 7.6 |
|---|---|
| Base Metrics | AV:N/AC:H/Au:N/C:C/I:C/A:C |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
CVSS v3 metrics
| CVSS3 Base Score | 8.1 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 5 (kernel) | RHSA-2016:2962 | 2016-12-20 |
| Red Hat Enterprise Linux Server TUS (v. 6.6) (kernel) | RHSA-2017:0216 | 2017-01-31 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) | RHSA-2017:0091 | 2017-01-17 |
| Red Hat Enterprise Linux 7 (kernel) | RHSA-2017:0086 | 2017-01-17 |
| Red Hat Enterprise Linux 6 (kernel) | RHSA-2017:0036 | 2017-01-10 |
| Red Hat Enterprise Linux Advanced Update Support 6.5 (kernel) | RHSA-2017:0065 | 2017-01-17 |
| Red Hat Enterprise Linux Extended Update Support 7.1 (kernel) | RHSA-2017:0270 | 2017-02-15 |
| Red Hat Enterprise Linux Extended Update Support 6.7 (kernel) | RHSA-2017:0031 | 2017-01-10 |
| Red Hat Enterprise Linux Advanced Update Support 6.4 (kernel) | RHSA-2017:0196 | 2017-01-26 |
| Red Hat Enterprise Linux Server TUS (v. 6.5) (kernel) | RHSA-2017:0065 | 2017-01-17 |
| Red Hat Enterprise Linux Advanced Update Support 6.6 (kernel) | RHSA-2017:0216 | 2017-01-31 |
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2017:0113 | 2017-01-17 |
| Red Hat Enterprise Linux Advanced Update Support 6.2 (kernel) | RHSA-2017:0215 | 2017-01-31 |
| Red Hat Enterprise Linux Extended Update Support 7.2 (kernel) | RHSA-2017:0217 | 2017-01-31 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected |