CVE-2022-30767: Buffer Overflow
First published: Mon May 16 2022(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| DENX U-Boot | <=2022.04 | |
| DENX U-Boot | =2022.07-rc1 | |
| DENX U-Boot | =2022.07-rc2 | |
| Fedoraproject Fedora | =36 | |
| ubuntu/u-boot | <2020.10+dfsg-1ubuntu0~18.04.3 | 2020.10+dfsg-1ubuntu0~18.04.3 |
| ubuntu/u-boot | <2021.01+dfsg-3ubuntu0~20.04.5 | 2021.01+dfsg-3ubuntu0~20.04.5 |
| ubuntu/u-boot | <2022.01+dfsg-2ubuntu2.3 | 2022.01+dfsg-2ubuntu2.3 |
| debian/u-boot | <=2021.01+dfsg-5 | 2019.01+dfsg-7 2023.01+dfsg-2 2024.01+dfsg-1 2024.01+dfsg-5 |
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Reference Links
- 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@lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
- https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/
- https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
- https://launchpad.net/bugs/cve/CVE-2022-30767
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
- https://security-tracker.debian.org/tracker/CVE-2022-30767
- https://ubuntu.com/security/notices/USN-5764-1
- https://www.cve.org/CVERecord?id=CVE-2022-30767
- https://nvd.nist.gov/vuln/detail/CVE-2022-30767
- https://github.com/u-boot/u-boot/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
- https://ubuntu.com/security/CVE-2022-30767
Frequently Asked Questions
What is the severity of CVE-2022-30767?
The severity of CVE-2022-30767 is critical, with a CVSS score of 9.8.
What is the affected software of CVE-2022-30767?
The affected software of CVE-2022-30767 is DENX U-Boot versions 2022.04, 2022.07-rc1, 2022.07-rc2, and Fedora 36.
What is the vulnerability of CVE-2022-30767?
CVE-2022-30767 is a buffer overflow vulnerability in nfs_lookup_reply in net/nfs.c in Das U-Boot.
How can I fix CVE-2022-30767?
To fix CVE-2022-30767, it is recommended to update to the latest version of DENX U-Boot or Fedora.
Where can I find more information about CVE-2022-30767?
More information about CVE-2022-30767 can be found at the following references: [GitHub Commit](https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96), [Denx Mailing List](https://lists.denx.de/pipermail/u-boot/2022-May/483952.html), [Fedora Mailing List](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/).
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