Vulnerability identifier: #VU16161

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-19519

CWE-ID:

Exploitation vector: Network

Exploit availability:

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

Vendor: Tcpdump.org

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition.

The vulnerability exists in the print_prefix function, as defined in the print-hncp.c source code file of the affected software due to insufficient initialization of the buf variable. A remote attacker can trick the victim into execution of the tcpdumpcommand on a .pcap file that submits malicious input, trigger a stack-based buffer overread and access sensitive memory information or cause a DoS condition. 

Mitigation
Install update from vendor's website.

Vulnerable software versions

Tcpdump: 4.9.2

---

Fixed software versions

CPE

• cpe:2.3:a:tcpdump_org:tcpdump:4.9.2:*:*:*:*:*:*:*

External links
http://github.com/zyingp/temp/blob/master/tcpdump.md

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?