#VU9337 Heap-based buffer overread

Published: 2017-11-14 | Updated: 2019-10-22

Vulnerability identifier: #VU9337

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-16808


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Server applications / DLP, anti-spam, sniffers

Vendor: Tcpdump.org


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to heap-based buffer overread in 'addrtoname.c' when handling malicious input. A remote attacker can supply a specially crafted pcap fil, trigger buffer overread and cause the service to crash.

Successful exploitation of the vulnerability results in denial of service.

Install updates from vendor's website.

Vulnerable software versions

Tcpdump: 4.9.0 - 4.9.2


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.

Latest bulletins with this vulnerability