GSD-2021-1000449 ethernet:enic: Fix a use after free bug in enic_hard_start_xmit
A use-after-free bug in the enic network driver allows attackers to potentially execute code or cause a system crash.
- 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-2021-1000449?
GSD-2021-1000449 is an use after free 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
ethernet:enic: Fix a use after free bug in enic_hard_start_xmit
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 v4.19.191 by commit 25a87b1f566b5eb2af2857a928f0e2310d900976, it was introduced in version v4.16 by commit fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3. For more details please see the references link.
Which versions are affected by GSD-2021-1000449?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000449?
No fix has been published for GSD-2021-1000449 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-2021-1000449 being exploited?
There is no known exploitation of GSD-2021-1000449 in the wild and no public exploit code.