Risk | Critical |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-13106 |
CWE-ID | CWE-121 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
U-Boot Client/Desktop applications / Other client software |
Vendor | DENX |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
EUVDB-ID: #VU19989
Risk: Critical
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-2019-13106
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when the ext4 code can overwrite portions of the stack with 0s in the "ext4fs_read_file" function. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
This vulnerability can easily give complete control of the CPU, which would defeat verified boot
Install update from vendor's website.
Vulnerable software versionsU-Boot: 2016.09 - 2019.07 rc4
External linkshttp://gist.github.com/deephooloovoo/d91b81a1674b4750e662dfae93804d75
http://github.com/u-boot/u-boot/commits/master
http://lists.denx.de/pipermail/u-boot/2019-July/375516.html
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.