GSD-2021-1000484 mtd: require write permissions for locking and badblock ioctls
Local attackers can modify flash memory locks and bad blocks without write permissions, potentially leading to privilege escalation or data corruption.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000484?
GSD-2021-1000484 is a missing authorization vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mtd: require write permissions for locking and badblock ioctls
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 v4.9.269 by commit 9625b00cac6630479c0ff4b9fafa88bee636e1f0, it was introduced in version v4.9.233 by commit 583d42400532fbd6228b0254d7c732b771e4750d. For more details please see the references link.
Which versions are affected by GSD-2021-1000484?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000484?
No fix has been published for GSD-2021-1000484 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is GSD-2021-1000484 being exploited?
There is no known exploitation of GSD-2021-1000484 in the wild and no public exploit code.