Buffer Overflow in Das U-Boot NFS Component
CVE-2022-30767

9.8CRITICAL

Key Information:

Vendor

Denx

Status
U-boot
Vendor
CVE Published:
16 May 2022

What is CVE-2022-30767?

An unbounded memcpy in the nfs_lookup_reply function within net/nfs.c of Das U-Boot through version 2022.04 (including the 2022.07-rc2 version) has been identified. This vulnerability arises from a failed length check, allowing for a buffer overflow that may lead to arbitrary code execution. It is significant as it exists due to an incorrect fix applied for a previous vulnerability, underscoring the importance of comprehensive testing and validation of security patches.

References

https://github.com/u-boot/u-boot/commit/5d14ee4e53a81055d...
x_refsource_MISC
https://lists.denx.de/pipermail/u-boot/2022-May/483952.html
x_refsource_MISC
https://securitylab.github.com/research/uboot-rce-nfs-vul...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.