Information disclosure in BusyBox



Published: 2019-01-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-5747
CWE-ID CWE-125
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe
BusyBox
Universal components / Libraries / Software for developers

Vendor busybox.net

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU16957

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-5747

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in udhcp components (consumed by the DHCP server, client, and/or relay). A remote attacker can leak sensitive information from the stack by sending a crafted DHCP message.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BusyBox: 1.0.0 - 1.30.0

External links

http://bugs.busybox.net/show_bug.cgi?id=11506
http://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06


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. However, proof of concept for this vulnerability is available.



###SIDEBAR###