CVE-2023-7256
MediumVulnerability Description
In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the function returns. This makes it possible in some scenarios that both the function and its caller call freeaddrinfo() for the same allocated memory block. A similar problem was reported in Apple libpcap, to which Apple assigned CVE-2023-40400.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Known Affected Software
39 configuration(s) from 1 vendor(s)
cpe:2.3:a:tcpdump:libpcap:1.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.10.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.7:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.7.3:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.10.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.7.4:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.10.4:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.10.3:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.8.2:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.5:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.8.3:*:*:*:*:*:*:*
cpe:2.3:a:tcpdump:libpcap:0.6.2:*:*:*:*:*:*:*
CPUOCT2025
Oracle Critical Patch Update Advisory - October 2025
2024-Nov-CVE-2023-7256
CVE-2023-7256: None
CPUJUL2025
Oracle Critical Patch Update Advisory - July 2025
CPUJAN2025
Oracle Critical Patch Update Advisory - January 2025
Severity Details
Weakness Type (CWE)
Double Free
- Description
- The product calls free() twice on the same memory address.
- Exploit Likelihood
- High
- Typical Severity
- Medium
- Abstraction Level
- Variant
Key Information
- Published Date
- August 31, 2024
