Vulnerability Details : 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. NOTE: this issue exists because of an incorrect fix for CVE-2019-14196.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2022-30767
Probability of exploitation activity in the next 30 days: 0.16%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 51 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-30767
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
[email protected] |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
[email protected] |
CWE ids for CVE-2022-30767
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: [email protected] (Primary)
References for CVE-2022-30767
-
https://securitylab.github.com/research/uboot-rce-nfs-vulnerability/
Exploit;Third Party Advisory
-
https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d34ba280cb8fd90330f22a96
Patch;Third Party Advisory
-
https://lists.denx.de/pipermail/u-boot/2022-May/483952.html
Mailing List;Third Party Advisory
-
https://source.denx.de/u-boot/u-boot/-/commit/bdbf7a05e26f3c5fd437c99e2755ffde186ddc80
Patch;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/DF62MVMH3QUGMBDCB3DY2ERQ6EBHTADB/
Patch;Third Party Advisory
Products affected by CVE-2022-30767
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
- cpe:2.3:a:denx:u-boot:2022.07:rc2:*:*:*:*:*:*
- cpe:2.3:a:denx:u-boot:2022.07:rc1:*:*:*:*:*:*