What’s Vulnerable › Vulnerabilities

CVE-2019-15165

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-10-03 · updated 2026-06-17
• Weakness: CWE-770

Description

sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

Affected products

• Apple iPadOS: 13.3
• Apple Iphone Os: 13.3
• macOS: from 10.13 before 10.13.6; 10.13.6-security_update_2019-007, 10.14.6-security_update_2019-002, 10.15.2 — fixed in 10.13.6
• Apple tvOS: 13.3
• Apple watchOS: 6.1.1
• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 19.04
• Debian Linux: 8.0, 9.0
• Fedoraproject Fedora: 29, 30, 31
• openSUSE Leap: 15.0, 15.1
• Oracle Corporation Communications Operations Monitor: 3.4, 4.0, 4.1, 4.2, 4.3
• The Tcpdump Group libpcap: before 1.9.1 — fixed in 1.9.1

How to fix

Upgrade to a fixed version: macOS 10.13.6; The Tcpdump Group libpcap 1.9.1. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00051.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00052.html
• http://seclists.org/fulldisclosure/2019/Dec/26
• https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES
• https://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20ab
• https://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6
• https://lists.debian.org/debian-lts-announce/2019/10/msg00031.html
• https://lists.debian.org/debian-lts-announce/2021/12/msg00014.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P5K3DQ4TFSZBDB3XN4CZNJNQ3UIF3D3/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GBIEKWLNIR62KZ5GA7EDXZS52HU6OE5F/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UZTIPUWABYUE5KQOLCKAW65AUUSB7QO6/
• https://seclists.org/bugtraq/2019/Dec/23

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