Buffer overflow in libpcap - CVE-2019-15165
Published: October 21, 2019
Vulnerability identifier: #VU21950
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-15165
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Tcpdump.org
Affected software:
libpcap
libpcap
Detailed vulnerability 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.
How to mitigate CVE-2019-15165
Install updates from vendor's website.