GSD-2022-1002682 NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
An uninitialized memory free in the Linux Kernel NFSv4 referral lookup can lead to system crashes or potential code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1002682?
GSD-2022-1002682 is an use after free vulnerability in Kernel, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
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 v5.18.3 by commit 6015292653d95ba9f72906e2b65e536aa5807d64, it was introduced in version v5.16 by commit 9558a007dbc383d48e7f5a123d0b5ff656c71068. For more details please see the references link.
Which versions are affected by GSD-2022-1002682?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002682?
No fix has been published for GSD-2022-1002682 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2022-1002682 being exploited?
There is no known exploitation of GSD-2022-1002682 in the wild and no public exploit code.