Multiple vulnerabilities in libpcap



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-7256
CVE-2024-8006
CWE-ID CWE-415
CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 libpcap
Universal components / Libraries / Libraries used by multiple products

Vendor Tcpdump.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Double free

EUVDB-ID: #VU96669

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-7256

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to crash the application.

The vulnerability exists due to a boundary error when configure for emote packet capture. A local user can trigger a double free error and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libpcap: 1.0.0 - 1.10.4

CPE2.3 External links

https://github.com/the-tcpdump-group/libpcap/commit/262e4f34979872d822ccedf9f318ed89c4d31c03
https://github.com/the-tcpdump-group/libpcap/commit/2aa69b04d8173b18a0e3492e0c8f2f7fabdf642d


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) NULL pointer dereference

EUVDB-ID: #VU96667

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-8006

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the pcap_findalldevs_ex() function in pcap.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libpcap: 1.0.0 - 1.10.4

CPE2.3 External links

https://github.com/the-tcpdump-group/libpcap/commit/0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29
https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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