GSD-2021-1002016 net/tls: Fix flipped sign in tls_err_abort() calls
A sign error in Linux Kernel TLS abort calls can cause unexpected behavior, potentially leading to denial of service.
- 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-2021-1002016?
GSD-2021-1002016 is a denial of service vulnerability in Kernel, published on 14 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
net/tls: Fix flipped sign in tls_err_abort() calls
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 v5.4.157 by commit e0cfd5159f314d6b304d030363650b06a2299cbb, it was introduced in version v4.17 by commit c46234ebb4d1eee5e09819f49169e51cfc6eb909. For more details please see the references link.
Which versions are affected by GSD-2021-1002016?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002016?
No fix has been published for GSD-2021-1002016 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1002016 being exploited?
There is no known exploitation of GSD-2021-1002016 in the wild and no public exploit code.