GSD-2022-1002625 tcp: tcp_rtx_synack() can be called from process context
A flaw in the Linux kernel TCP stack allows remote attackers to cause a denial of service by triggering a context violation in SYN-ACK retransmission.
- 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-2022-1002625?
GSD-2022-1002625 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tcp: tcp_rtx_synack() can be called from process context
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 v5.18.4 by commit d8e1bc6029acac796293310aacef7b7336f35b6a, it was introduced in version v3.7 by commit 168a8f58059a22feb9e9a2dcc1b8053dbbbc12ef. For more details please see the references link.
Which versions are affected by GSD-2022-1002625?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002625?
No fix has been published for GSD-2022-1002625 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-2022-1002625 being exploited?
There is no known exploitation of GSD-2022-1002625 in the wild and no public exploit code.