GSD-2021-1001153 tcp: fix tcp_init_transfer() to not reset icsk_ca_initialized

Not scored Published

A bug in the Linux Kernel TCP implementation incorrectly resets congestion control state, potentially affecting network performance or stability.

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-2021-1001153?

GSD-2021-1001153 is a vulnerability in Kernel, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

tcp: fix tcp_init_transfer() to not reset icsk_ca_initialized

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 v5.13.5 by commit fe77b85828ca9ddc42977b79de9e40d18545b4fe, it was introduced in version v5.10 by commit 8919a9b31eb4fb4c0a93e5fb350a626924302aa6. For more details please see the references link.

Which versions are affected by GSD-2021-1001153?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001153?

No fix has been published for GSD-2021-1001153 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1001153 being exploited?

There is no known exploitation of GSD-2021-1001153 in the wild and no public exploit code.

Sources

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