GSD-2021-1000575 net: zero-initialize tc skb extension on allocation

Not scored Published

Uninitialized memory in the Linux kernel traffic control subsystem may allow attackers to read sensitive kernel 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-2021-1000575?

GSD-2021-1000575 is a vulnerability in Kernel, published on 4 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

net: zero-initialize tc skb extension on allocation

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 v5.10.42 by commit ac493452e937b8939eaf2d24cac51a4804b6c20e, it was introduced in version v5.9 by commit 038ebb1a713d114d54dbf14868a73181c0c92758. For more details please see the references link.

Which versions are affected by GSD-2021-1000575?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000575?

No fix has been published for GSD-2021-1000575 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1000575 being exploited?

There is no known exploitation of GSD-2021-1000575 in the wild and no public exploit code.

Sources

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