Red Hat update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-11600 CVE-2018-3639 |
| CWE-ID | CWE-125 CWE-362 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, big endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux Server - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM System z (Structure A) Operating systems & Components / Operating system Red Hat Enterprise Linux for Power 9 Operating systems & Components / Operating system Red Hat Enterprise Linux for ARM 64 Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, big endian Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems Operating systems & Components / Operating system Red Hat Enterprise Linux for Scientific Computing Operating systems & Components / Operating system Red Hat Enterprise Linux EUS Compute Node Operating systems & Components / Operating system Red Hat Enterprise Linux Desktop Operating systems & Components / Operating system Red Hat Enterprise Linux Workstation Operating systems & Components / Operating system Red Hat Enterprise Linux Server Operating systems & Components / Operating system kernel (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Virtualization Host Web applications / Remote management & hosting panels |
| Vendor |
Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Out-of-bounds read
EUVDB-ID: #VU8131
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-11600
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in net/xfrm/xfrm_policy.c due to it does not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less when CONFIG_XFRM_MIGRATE is enabled. A local attacker can submit a specially crafted XFRM_MSG_MIGRATE xfrm Netlink message and cause the service to crash.
Install updates from vendor's website.
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.5
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.5
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.5
Red Hat Enterprise Linux Server - Extended Update Support: 7.5
Red Hat Enterprise Linux for IBM System z (Structure A): 7.0
Red Hat Enterprise Linux for Power 9: 7.0
Red Hat Enterprise Linux for ARM 64: 7.0
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-862.3.3.el7
Red Hat Enterprise Linux for Power, little endian: 7
Red Hat Enterprise Linux for Power, big endian: 7
Red Hat Virtualization Host: 4
Red Hat Enterprise Linux for IBM z Systems: 7
Red Hat Enterprise Linux for Scientific Computing: 7
Red Hat Enterprise Linux EUS Compute Node: 7.5
Red Hat Enterprise Linux Desktop: 7
Red Hat Enterprise Linux Workstation: 7
Red Hat Enterprise Linux Server: 7
:
External linkshttp://access.redhat.com/errata/RHSA-2018:1965
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.
2) 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".
Install updates from vendor's website.
Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 7.5
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.5
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.5
Red Hat Enterprise Linux Server - Extended Update Support: 7.5
Red Hat Enterprise Linux for IBM System z (Structure A): 7.0
Red Hat Enterprise Linux for Power 9: 7.0
Red Hat Enterprise Linux for ARM 64: 7.0
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-862.3.3.el7
Red Hat Enterprise Linux for Power, little endian: 7
Red Hat Enterprise Linux for Power, big endian: 7
Red Hat Virtualization Host: 4
Red Hat Enterprise Linux for IBM z Systems: 7
Red Hat Enterprise Linux for Scientific Computing: 7
Red Hat Enterprise Linux EUS Compute Node: 7.5
Red Hat Enterprise Linux Desktop: 7
Red Hat Enterprise Linux Workstation: 7
Red Hat Enterprise Linux Server: 7
:
External linkshttp://access.redhat.com/errata/RHSA-2018:1965
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.
