What’s Vulnerable › Vulnerabilities

CVE-2019-15162

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% 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-345

Description

rpcapd/daemon.c in libpcap before 1.9.1 on non-Windows platforms provides details about why authentication failed, which might make it easier for attackers to enumerate valid usernames.

Affected products

• The Tcpdump Group libpcap: before 1.9.1 — fixed in 1.9.1

How to fix

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

References

• 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/484d60cbf7ca4ec758c3cbb8a82d68b244a78d58
• 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
• https://support.apple.com/kb/HT210785
• https://support.apple.com/kb/HT210788
• https://support.apple.com/kb/HT210789
• https://support.apple.com/kb/HT210790
• https://www.oracle.com/security-alerts/cpuapr2020.html

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