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.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| linux | linux_kernel | 3.7 - 3.16.65 | - |
| linux | linux_kernel | 3.17 - 3.18.133 | - |
| linux | linux_kernel | 3.19 - 4.4.171 |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
12
Affected Products
44
References
linux / linux_kernel
| - |
| linux | linux_kernel | 4.5 - 4.9.151 | - |
| linux | linux_kernel | 4.10 - 4.14.94 | - |
| linux | linux_kernel | 4.15 - 4.19.16 | - |
| linux | linux_kernel | 4.20 - 4.20.3 | - |
| redhat | enterprise_linux | - | - |
| redhat | enterprise_mrg | - | - |
| debian | debian_linux | - | - |
| canonical | ubuntu_linux | - | - |
| canonical | ubuntu_linux | - | - |
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact