4.4

CVE-2023-7256

Double-free in libpcap before 1.10.5 with remote packet capture support.

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Tcpdump ≫ Libpcap Version < 1.10.5
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.133
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.4 0.8 3.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
security@tcpdump.org 4.4 0.8 3.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-415 Double Free

The product calls free() twice on the same memory address.

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