CVE-2024-8006

Summary

Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally means a directory with input data files. When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence.

Affected Software

VendorProductVersion RangeStatus
The Tcpdump Grouplibpcap1.9.xaffected
The Tcpdump Grouplibpcap1.10.x <= 1.10.4affected

Weaknesses

  • CWE-476: CWE-476 NULL Pointer Dereference

Workarounds

Do not build libpcap with remote packet capture support.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References