Remote code execution in U-Boot



Published: 2019-07-31 | Updated: 2022-06-15
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14196
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
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U-Boot
Client/Desktop applications / Other client software

Vendor DENX

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU64419

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14196

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the nfs_lookup_reply() function in net/nfs.c. A remote attacker can create a specially crafted data to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

U-Boot: 2019.0 - 2019.07 rc4

External links

http://blog.semmle.com/uboot-rce-nfs-vulnerability/
http://gitlab.com/u-boot/u-boot


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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