#VU21950 Buffer overflow


Published: 2019-10-21

Vulnerability identifier: #VU21950

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2019-15165

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libpcap
Universal components / Libraries / Libraries used by multiple products

Vendor: Tcpdump.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the sf-pcapng.c in libpcap when processing the PHB header length before allocating memory. A remote attacker can pass specially crafted data to the application that uses the vulnerable library, trigger memory corruption and perform denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libpcap: 0.5.1 - 1.9.0


CPE

External links
http://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES
http://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20ab
http://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6
http://www.tcpdump.org/public-cve-list.txt


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability