Critical severity · published May 16, 2022
CVE-2022-30767
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
9.8
CVSS
2.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
36 · source: NVD
UB
U-boot · Denx
through 2022.04; 2022.07; 2022.07 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-30767
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-30767
Patch
https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96
Mailing List
https://lists.denx.de/pipermail/u-boot/2022-May/483952.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
Exploit
https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/
Patch
https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
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