SB2024090219 - Multiple vulnerabilities in libpcap
Published: September 2, 2024
Security Bulletin ID
SB2024090219
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Double free (CVE-ID: CVE-2023-7256)
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.
2) NULL pointer dereference (CVE-ID: CVE-2024-8006)
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.
Remediation
Install update from vendor's website.
References
- https://github.com/the-tcpdump-group/libpcap/commit/262e4f34979872d822ccedf9f318ed89c4d31c03
- https://github.com/the-tcpdump-group/libpcap/commit/2aa69b04d8173b18a0e3492e0c8f2f7fabdf642d
- https://github.com/the-tcpdump-group/libpcap/commit/0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29
- https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6