// For flags

CVE-2024-8006

NULL pointer dereference in libpcap before 1.10.5 with remote packet capture support

Severity Score

4.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

This update for libpcap fixes the following issues. NULL pointer dereference in function pcap_findalldevs_ex. Double free via struct addrinfo in function sock_initaddress.

*Credits: Flavio Toffalini, Nicolas Badoux
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Multiple
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-08-20 CVE Reserved
  • 2024-08-30 CVE Published
  • 2024-09-03 CVE Updated
  • 2025-07-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
The Tcpdump Group
Search vendor "The Tcpdump Group"
 Libpcap
Search vendor "The Tcpdump Group" for product "Libpcap"
 >= 1.10.0 <= 1.10.4
Search vendor "The Tcpdump Group" for product "Libpcap" and version " >= 1.10.0 <= 1.10.4"
en
Affected