CVE-2022-30767
9.8
CRITICAL · CVSS 3.1 · EPSS 2.7% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.73% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-05-16 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| denx | u-boot |
| fedoraproject | fedora |
References
- https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96
- https://lists.denx.de/pipermail/u-boot/2022-May/483952.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
- https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/
- https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
- https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96
- https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
- https://lists.denx.de/pipermail/u-boot/2022-May/483952.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
- https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/
- https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
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