First published: Mon Oct 03 2022(Updated: )
A buffer overflow flaw was found in the Linux kernel nfsd (network file system) subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service.
Credit: disclosure@synopsys.com disclosure@synopsys.com disclosure@synopsys.com
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/kernel-rt | <0:4.18.0-425.13.1.rt7.223.el8_7 | 0:4.18.0-425.13.1.rt7.223.el8_7 |
redhat/kernel | <0:4.18.0-425.13.1.el8_7 | 0:4.18.0-425.13.1.el8_7 |
redhat/kernel | <0:5.14.0-162.12.1.el9_1 | 0:5.14.0-162.12.1.el9_1 |
redhat/kernel-rt | <0:5.14.0-162.12.1.rt21.175.el9_1 | 0:5.14.0-162.12.1.rt21.175.el9_1 |
redhat/kernel | <0:5.14.0-70.36.1.el9_0 | 0:5.14.0-70.36.1.el9_0 |
redhat/kernel-rt | <0:5.14.0-70.36.1.rt21.108.el9_0 | 0:5.14.0-70.36.1.rt21.108.el9_0 |
Linux Kernel | <5.19.17 | |
Linux Kernel | >=6.0<6.0.2 | |
NetApp Active IQ Unified Manager for VMware vSphere | ||
All of | ||
netapp h300s firmware | ||
netapp h300s | ||
All of | ||
NetApp H500S Firmware | ||
netapp h500s | ||
All of | ||
netapp h700s firmware | ||
netapp h700s | ||
All of | ||
netapp h410s firmware | ||
netapp h410s | ||
All of | ||
netapp h410c firmware | ||
netapp h410c | ||
netapp h300s firmware | ||
netapp h300s | ||
NetApp H500S Firmware | ||
netapp h500s | ||
netapp h700s firmware | ||
netapp h700s | ||
netapp h410s firmware | ||
netapp h410s | ||
netapp h410c firmware | ||
netapp h410c | ||
debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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(Appears in the following advisories)
CVE-2022-43945 has a severity rating that suggests it could lead to a denial of service due to a buffer overflow in the Linux kernel's nfsd subsystem.
To mitigate CVE-2022-43945, upgrade to patched kernel versions, specifically kernel-rt versions 0:4.18.0-425.13.1.rt7.223.el8_7, or other specified updates.
CVE-2022-43945 affects various versions of the Linux kernel including those before versions 0:4.18.0-425.13.1.el8_7 and 0:5.14.0-162.12.1.el9_1.
The potential impact of CVE-2022-43945 is a denial of service, which could starve resources and disrupt system functionality for users.
While the best course of action is to apply the relevant updates, temporarily limiting network access to the nfsd service can help reduce exposure until a fix is implemented.