Integer Overflow Vulnerability in BusyBox DHCP Client
CVE-2016-2147

7.5HIGH

Key Information:

Vendor

Busybox

Status
Busybox
Vendor
CVE Published:
9 February 2017

What is CVE-2016-2147?

An integer overflow vulnerability in the DHCP client (udhcpc) of BusyBox prior to version 1.25.0 can be exploited by remote attackers. By sending a malformed RFC1035-encoded domain name, an attacker may trigger a denial of service condition by causing an out-of-bounds write to the heap memory. This could result in unexpected crashes, compromising the availability of the service.

References

https://git.busybox.net/busybox/commit/?id=d474ffc68290e0...
x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2016/03/11/16
mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201612-04
vendor-advisoryx_refsource_GENTOO

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.