CVE-2024-8006: tcpdump libpcap NULL Pointer Dereference
Vulnerability summary
CVE-2024-8006 is a medium (CVSS 4.4) NULL Pointer Dereference vulnerability in tcpdump libpcap. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 8 · Related 8Timeline
- 30-08-2024PublishedVulnerability first disclosed.
- 03-09-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · DebianEcosystem advisory · calculated4.4MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.4MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libpcapAll versions (No fix recorded) | < 1.10.5-1
Tcpdump1 product
- libpcap< 1.10.5
The tcpdump group1 product
- libpcap≥ 1.9.0, < 1.10.0 | ≥ 1.10.x, ≤ 1.10.4
3 vendors · 3 products
