Buffer overflow in tcpdump (Alpine package)

Published: 2017-02-06

Risk	High
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2016-7923
CWE-ID	CWE-120
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	tcpdump (Alpine package) Operating systems & Components / Operating system package or component
Vendor	Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU6730

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-2016-7923

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allow a remote attacker to cause DoS condition or potentially execute arbitrary code on the target system.

The weakness exists due to buffer overflow in the print-arp.c:arp_print() in the ARP parser. A remote attacker can use a specially crafted ARP protocol to trigger memory corruption and cause the application to crash or possibly execute arbitrary code.

Successful exploitation of the vulnerability may result system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tcpdump (Alpine package): 4.3.0-r0 - 4.7.4-r2

External links

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.