CVE-2024-8006 | NULL pointer dereference in libpcap before 1.10.5 with remote packet capture support

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: 2024-08-31 Last update: 2024-09-19 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-8006 is rated Low Risk (22.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-8006

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.22% +0.21%
2 2025-11-21 0.07% 0.01% -0.05%
3 2025-11-18 — 0.07% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-8006

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 3.6 [email protected]
4.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 3.6 [email protected]

Weakness enumeration for CVE-2024-8006

OS Trackers for CVE-2024-8006

vendor priority summary link
alpine medium CVE-2024-8006: 1 source package rows (libpcap); 4 state rows across 4 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main); fixed 0, open 4. https://security.alpinelinux.org/vuln/CVE-2024-8006
debian unimportant CVE-2024-8006 unimportant priority: Debian including 1 source packages (libpcap), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2024-8006
redhat medium — https://access.redhat.com/security/cve/CVE-2024-8006
suse medium CVE-2024-8006 severity moderate: SUSE including 266 source package names (13.2-3.13.33:libpcap1-1.9.1-150300.3.3.1, 13.2-3.5.37:libpcap1-1.10.1-150400.3.3.2, …), 483 product×package rows across 229 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (229 product lines)): Fixed 257, Known Affected 216, Will Not Fix 9, Known Not Affected 1. https://www.suse.com/security/cve/CVE-2024-8006/
ubuntu medium CVE-2024-8006 medium priority: Ubuntu including 1 source packages (libpcap), 7 status rows across 7 suites (bionic, focal, jammy, noble, trusty, upstream, xenial): not-affected 6, released 1. https://ubuntu.com/security/CVE-2024-8006

Affected software / configurations for CVE-2024-8006

Vendor Product Version Raw CPE
tcpdump libpcap < 1.10.5 cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*

References for CVE-2024-8006

cvelogic Threat Intelligence