CVE-2018-16884 (High) detected in linuxv3.10, linuxlinux-3.13.5

[mend-bolt-for-github]

CVE-2018-16884 - High Severity Vulnerability

Vulnerable Libraries - linuxv3.10, linuxlinux-3.13.5

Vulnerability Details

A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

Publish Date: 2018-12-18

URL: CVE-2018-16884

CVSS 3 Score Details (8.0)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Adjacent
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Change files

Origin: torvalds/linux@d4b09ac#diff-976c52e84334e5a1dc6391ee4bc36d3e

Release Date: 2018-12-28

Fix Resolution: Replace or update the following files: svc.c, svc.h, svcsock.c, svc_xprt.c, sunrpc.h

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