CVE-2017-17741

Impact:
Low
Public Date:
2017-12-11
CWE:
CWE-125
Bugzilla:
1527112: CVE-2017-17741 kernel: kvm: stack-based out-of-bounds read via vmcall instruction
Linux kernel compiled with the KVM virtualization (CONFIG_KVM) support is vulnerable to an out-of-bounds read access issue. It could occur when emulating vmcall instructions invoked by a guest. A guest user/process could use this flaw to disclose kernel memory bytes.

Find out more about CVE-2017-17741 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and 7.

This has been rated as having Low security impact and is not currently
planned to be addressed in future updates. For additional information, refer
to the Red Hat Enterprise Linux Life Cycle:
https://access.redhat.com/support/policy/updates/errata/.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.3
Base Metrics AV:A/AC:M/Au:S/C:P/I:N/A:N
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 4.1
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Low
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Not affected
Red Hat Enterprise Linux 7 kernel-alt Will not fix
Red Hat Enterprise Linux 7 kernel Will not fix
Red Hat Enterprise Linux 7 kernel-rt Will not fix
Red Hat Enterprise Linux 6 kernel Will not fix
Red Hat Enterprise Linux 5 kernel Not affected

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