HOME VULNERABILITIESCVE-2019-15165

MEDIUM

CVE-2019-15165

CWE-770Published: October 3, 2019· Updated: Jun 17, 2026

5.3

CVSS v3.1

Official Description

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

Technical Analysis

CVE-2019-15165 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

Apple5 product(s)

ipadosiphone osmac os xtvoswatchos

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

Fedora1 product(s)

fedora

openSUSE1 product(s)

leap

Oracle1 product(s)

communications operations monitor

tcpdump1 product(s)

libpcap

Source: NVD CPE · 26 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20ab

PATCHhttps://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6

PATCHhttps://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20ab

PATCHhttps://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00051.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00052.html

ADVISORYhttp://seclists.org/fulldisclosure/2019/Dec/26

ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/10/msg00031.html

ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/12/msg00014.html

ADVISORYhttps://seclists.org/bugtraq/2019/Dec/23

ADVISORYhttps://support.apple.com/kb/HT210785

ADVISORYhttps://support.apple.com/kb/HT210788

ADVISORYhttps://support.apple.com/kb/HT210789

ADVISORYhttps://support.apple.com/kb/HT210790

ADVISORYhttps://usn.ubuntu.com/4221-1/

ADVISORYhttps://usn.ubuntu.com/4221-2/

ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2020.html

ADVISORYhttps://www.tcpdump.org/public-cve-list.txt

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00051.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00052.html

ADVISORYhttp://seclists.org/fulldisclosure/2019/Dec/26

ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/10/msg00031.html

ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/12/msg00014.html

ADVISORYhttps://seclists.org/bugtraq/2019/Dec/23

ADVISORYhttps://support.apple.com/kb/HT210785

ADVISORYhttps://support.apple.com/kb/HT210788

ADVISORYhttps://support.apple.com/kb/HT210789

ADVISORYhttps://support.apple.com/kb/HT210790

ADVISORYhttps://usn.ubuntu.com/4221-1/

ADVISORYhttps://usn.ubuntu.com/4221-2/

ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2020.html

ADVISORYhttps://www.tcpdump.org/public-cve-list.txt

All References (40)

→

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00051.htmlMailing List · Third Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00052.htmlMailing List · Third Party Advisory

→

http://seclists.org/fulldisclosure/2019/Dec/26Issue Tracking · Mailing List · Third Party Advisory

→

https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGESProduct · Release Notes

→

https://github.com/the-tcpdump-group/libpcap/commit/87d6bef033062f969e70fa40c43dfd945d5a20abPatch · Third Party Advisory

→

https://github.com/the-tcpdump-group/libpcap/commit/a5a36d9e82dde7265e38fe1f87b7f11c461c29f6Patch · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2019/10/msg00031.htmlMailing List · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2021/12/msg00014.htmlMailing List · Third Party Advisory

→

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/23Mailing List · Third Party Advisory

→

https://support.apple.com/kb/HT210785Third Party Advisory

→

https://support.apple.com/kb/HT210788Third Party Advisory

→

https://support.apple.com/kb/HT210789Third Party Advisory

Quick Facts

CVE IDCVE-2019-15165

CVSS Score5.3 / 10

SeverityMEDIUM

WeaknessCWE-770

CISA KEVNo

Affected7 vendor(s)

PublishedOct 3, 2019

Related CVEs (CWE-770)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-15165 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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