high8.0
CVE-2018-16884
A flaw was found in the Linux kernel's NFS41+ subsystem.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 3.7 before 3.16.65 from 3.17 before 3.18.133 from 3.19 before 4.4.171 from 4.5 before 4.9.151 from 4.10 before 4.14.94 from 4.15 before 4.19.16 |
| Redhat | Enterprise Linux | Version 7.0 |
| Redhat | Enterprise Mrg | Version 2.0 |
| Debian | Debian Linux | Version 8.0 |
| Canonical | Ubuntu Linux | Versions 14.04, 16.04 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.securityfocus.com/bid/106253
- 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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
- https://patchwork.kernel.org/cover/10733767/
- https://patchwork.kernel.org/patch/10733769/
- https://support.f5.com/csp/article/K21430012
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/3932-2/
- https://usn.ubuntu.com/3980-1/
- https://usn.ubuntu.com/3980-2/
- https://usn.ubuntu.com/3981-1/
- https://usn.ubuntu.com/3981-2/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://www.securityfocus.com/bid/106253
- https://access.redhat.com/errata/RHSA-2019:1873
- https://access.redhat.com/errata/RHSA-2019:1891