CVE-2018-16884

Description (CNA)

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.

Affected (CNA)

CWE

CWE-416

References

• http://www.securityfocus.com/bid/106253
• https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
• https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
• https://usn.ubuntu.com/3932-1/
• https://usn.ubuntu.com/3932-2/
• https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
• https://usn.ubuntu.com/3981-1/
• https://usn.ubuntu.com/3980-1/
• https://usn.ubuntu.com/3980-2/
• https://usn.ubuntu.com/3981-2/
• https://access.redhat.com/errata/RHSA-2019:1873
• https://access.redhat.com/errata/RHSA-2019:1891
• https://access.redhat.com/errata/RHSA-2019:2696
• https://access.redhat.com/errata/RHSA-2019:2730
• https://access.redhat.com/errata/RHSA-2019:3309
• https://access.redhat.com/errata/RHSA-2019:3517
• https://access.redhat.com/errata/RHSA-2020:0204
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884
• https://patchwork.kernel.org/patch/10733769/
• https://patchwork.kernel.org/cover/10733767/
• https://support.f5.com/csp/article/K21430012

ADP enrichment