Red Hat update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-13305 CVE-2018-3665 |
| CWE-ID | CWE-200 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
kernel-rt (Red Hat package) Operating systems & Components / Operating system package or component MRG Realtime Server applications / Application servers Other |
| Vendor |
Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU12848
Risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2017-13305
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists in the Upstream kernel encrypted-keys due to improper information control. A remote attacker can gain access to potentially sensitive information.
MitigationInstall update from vendor's website.
Vulnerable software versionskernel-rt (Red Hat package): 3.10.0-229.rt56.144.el6rt - 3.10.0-693.25.7.rt56.615.el6rt
MRG Realtime: 2
:
CPE2.3- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.144.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.147.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.151.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:mrg_realtime:2:*:*:*:*:*:*:*
- cpe:2.3:::::*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2018:2165
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Side-channel attack
EUVDB-ID: #VU13337
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-3665
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to utilizing the Lazy FP state restore technique for floating point state when context switching between application processes. A local attacker can conduct cache side-channel attacks and determine register values of other processes.
Note: This vulnerability is known as LazyFP.
MitigationInstall update from vendor's website.
Vulnerable software versionskernel-rt (Red Hat package): 3.10.0-229.rt56.144.el6rt - 3.10.0-693.25.7.rt56.615.el6rt
MRG Realtime: 2
:
CPE2.3- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.144.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.147.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:kernel-rt_redhat_package:3.10.0-229.rt56.151.el6rt:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:mrg_realtime:2:*:*:*:*:*:*:*
- cpe:2.3:::::*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2018:2165
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.
