GSD-2021-1001721 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb
A null pointer dereference in the Linux Kernel SCTP implementation can cause a denial of service when processing out-of-band data.
- 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-2021-1001721?
GSD-2021-1001721 is a vulnerability in Kernel, published on 19 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb
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 v5.14.10 by commit 8180611c238e11676612eb2a9828b1c7a3a4d77b, it was introduced in version v4.8 by commit 3acb50c18d8d6650f10919464ade4dcdaf41d62f. For more details please see the references link.
Which versions are affected by GSD-2021-1001721?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001721?
No fix has been published for GSD-2021-1001721 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001721 being exploited?
There is no known exploitation of GSD-2021-1001721 in the wild and no public exploit code.