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Fencer Vulns
medium 5.3

CVE-2019-15161 json

rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable.

published 2019-10-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6217

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.

Patch / fix

  • tcpdump libpcap 1.9.1
  • libpcap Debian 14, Debian 13, Debian 12 1.9.1-1

debian advisories DEBIAN-CVE-2019-15161

  • libpcap Alpine 3.10 1.1.1-r0
  • libpcap Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 1.9.1-r0

alpine advisories ALPINE-CVE-2019-15161

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-15161 updated cvss 5.3

libpcap: Mishandled length values in reused variables

  • Red Hat Enterprise Linux 6 libpcap Red Hat Enterprise Linux 7 libpcap Red Hat Enterprise Linux 8 libpcap
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.76% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-131 Incorrect Calculation of Buffer Size

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.