NULL pointer dereference in Tcpdump Libpcap
CVE-2024-8006
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (13.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Tcpdump Libpcap
- The Tcpdump Group Libpcap — versions 1.9.x, 1.10.x
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-8006?
- CVE-2024-8006 is a medium-severity vulnerability in Tcpdump Libpcap, classified under NULL Pointer Dereference. CVSS score: 4.4/10. Published 2024-08-31.
- How severe is CVE-2024-8006?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2024-8006 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.