Red Hat update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-3639 |
| CWE-ID | CWE-362 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions Operating systems & Components / Operating system package or component kernel (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system |
| Vendor |
Red Hat Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Speculative Store Bypass
EUVDB-ID: #VU12911
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-3639
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists due to race conditions in CPU cache processing. A local attacker can conduct a side-channel attack to exploit a flaw in the speculative execution of Load and Store instructions to read privileged memory.
Note: the vulnerability is referred to as "Spectre variant 4".
The CPU vendors are providing software and firmware updates to mitigate the applicable vulnerabilities to operating system vendors and system manufacturers.
Vulnerable software versionsRed Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.2
Red Hat Enterprise Linux Server - TUS: 7.2
Red Hat Enterprise Linux Server - AUS: 7.2
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-327.66.5.el7
:
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.2:*:*:*:*:*:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_tus:7.2:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.2:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.61.3.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.59.3.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.59.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:::::*:*:*:*:*:*:
http://access.redhat.com/errata/RHSA-2018:2216
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
