GSD-2021-1001409 net: qcom/emac: fix UAF in emac_remove
A use-after-free vulnerability in the Qualcomm EMAC network driver allows local attackers to cause denial of service or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001409?
GSD-2021-1001409 is an use after free vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: qcom/emac: fix UAF in emac_remove
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 v4.14.241 by commit b1e091331920f8fbfc747dcbd16263fcd71abb2d, it was introduced in version v4.9 by commit 54e19bc74f3380d414681762ceed9f7245bc6a6e. For more details please see the references link.
Which versions are affected by GSD-2021-1001409?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001409?
No fix has been published for GSD-2021-1001409 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-2021-1001409 being exploited?
There is no known exploitation of GSD-2021-1001409 in the wild and no public exploit code.