GSD-2021-1002740 inet_diag: fix kernel-infoleak for UDP sockets
A local attacker can exploit a kernel information leak in UDP socket diagnostics to read sensitive kernel memory.
- 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-2021-1002740?
GSD-2021-1002740 is a vulnerability in Kernel, published on 27 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
inet_diag: fix kernel-infoleak for UDP sockets
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 v5.15.11 by commit e5d28205bf1de7082d904ed277ceb2db2879e302, it was introduced in version v3.3 by commit 3c4d05c8056724aff3abc20650807dd828fded54. For more details please see the references link.
Which versions are affected by GSD-2021-1002740?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002740?
No fix has been published for GSD-2021-1002740 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1002740 being exploited?
There is no known exploitation of GSD-2021-1002740 in the wild and no public exploit code.