# CVE-2024-8006: libpcap: Remote packet capture support is disabled by default in libpcap

CVE-2024-8006 is fixed in libpcap on 1 platform, first by DEBIAN-CVE-2024-8006, released August 31, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-8006
- Priority: Routine
- CVSS: 4.4 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 31, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libpcap Debian 13.5 (trixie) | 1.10.5-1 | [DEBIAN-CVE-2024-8006](https://patchblox.com/security/data/fix/linux/debian-cve-2024-8006.md) | Aug 31, 2024 |
| Linux | libpcap Debian 14 | 1.10.5-1 | [DEBIAN-CVE-2024-8006](https://patchblox.com/security/data/fix/linux/debian-cve-2024-8006.md) | Aug 31, 2024 |
| Linux | libpcap opensuse-leap 15.6 | 1.10.4-150600.3.3.2 | [SUSE-SU-2024:3217-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3217-1.md) | Sep 12, 2024 |
| Linux | libpcap sles 15.6 | 1.10.4-150600.3.3.2 | [SUSE-SU-2024:3217-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3217-1.md) | Sep 12, 2024 |

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