VULNERABILITY INTELLIGENCE

CVE-2023-7256

CVSS score4.4 MEDIUM
EPSS probability0.24%
CISA KEVNot currently listed
Published2024-08-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Description

In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the function returns. This makes it possible in some scenarios that both the function and its caller call freeaddrinfo() for the same allocated memory block. A similar problem was reported in Apple libpcap, to which Apple assigned CVE-2023-40400.

Weakness classification

  • security@tcpdump.org: CWE-415
  • nvd@nist.gov: CWE-415

Primary references