CVE-2022-30767

Public Exploit

Description

nfs_lookup_reply in net/nfs.c in Das U-Boot through 2022.04 (and through 2022.07-rc2) has an unbounded memcpy with a failed length check, leading to a buffer overflow. NOTE: this issue exists because of an incorrect fix for CVE-2019-14196.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory fedoraproject.org Vendor Advisory denx.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96 third party advisory patch
https://lists.denx.de/pipermail/u-boot/2022-May/483952.html third party advisory mailing list
https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/ third party advisory exploit
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/ vendor advisory
https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-30767?
CVE-2022-30767 has been scored as a critical severity vulnerability.
How to fix CVE-2022-30767?
To fix CVE-2022-30767, 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-2022-30767 being actively exploited in the wild?
It is possible that CVE-2022-30767 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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