CVE-2019-15165
libpcap: Resource exhaustion during PHB header length validation
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 20, 2019
Updated · December 4, 2025
Description
sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.
Statement
A Low Impact has been given to this flaw even though the CVSSv3 is 7.5, because libpcap library is mainly used as part of debugging tools like wireshark or tcpdump, where an impact to the Availability is not considered security relevant in a reasonable scenario.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 · Uncontrolled Resource Consumption