Missing Release of Resource after Effective Lifetime Affecting libpcap-devel package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (12th percentile)

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  • Snyk IDSNYK-RHEL8-LIBPCAPDEVEL-19731812
  • published13 Sept 2026
  • disclosed5 Sept 2026

Introduced: 5 Sep 2026

CVE-2026-18313  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 libpcap-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpcap-devel package and not the libpcap-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use. A malicious client can cause the server to leak memory substantially faster.

CVSS Base Scores

version 3.1