GSD-2022-1001920 jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
A use-after-free vulnerability in the Linux kernel's JFFS2 filesystem allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001920?
GSD-2022-1001920 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
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 v5.15.33 by commit 7a75740206af5f17e9f3efa384211cba70213da1, it was introduced in version v2.6.18 by commit aa98d7cf59b5b0764d3502662053489585faf2fe. For more details please see the references link.
Which versions are affected by GSD-2022-1001920?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001920?
No fix has been published for GSD-2022-1001920 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-2022-1001920 being exploited?
There is no known exploitation of GSD-2022-1001920 in the wild and no public exploit code.