GSD-2021-1002325 NFSD: Fix exposure in nfsd4_decode_bitmap()

Not scored Published

An exposure in the Linux Kernel NFS server bitmap decoding allows potential information disclosure, requiring a kernel patch.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is GSD-2021-1002325?

GSD-2021-1002325 is a vulnerability in Kernel, published on 29 Nov 2021. It can be exploited over the network, with no action from the victim.

Official description

NFSD: Fix exposure in nfsd4_decode_bitmap()

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.5 by commit 10c22d9519f3f5939de61a1500aa3a926b778d3a, it was introduced in version v5.11 by commit d1c263a031e876ac3ca5223c728e4d98ed50b3c0. For more details please see the references link.

Which versions are affected by GSD-2021-1002325?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1002325?

No fix has been published for GSD-2021-1002325 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1002325 being exploited?

There is no known exploitation of GSD-2021-1002325 in the wild and no public exploit code.

Sources

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