CVE-2021-42008

Public Exploit

Description

The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.80% Top 30%
Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=19d1532a187669ce86d5a2696eb7275310070793 patch vendor advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.13 release notes vendor advisory
https://www.youtube.com/watch?v=d5f9xLK8Vhw third party advisory exploit
https://security.netapp.com/advisory/ntap-20211104-0002/ third party advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-42008?
CVE-2021-42008 has been scored as a high severity vulnerability.
How to fix CVE-2021-42008?
To fix CVE-2021-42008, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-42008 being actively exploited in the wild?
It is possible that CVE-2021-42008 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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