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Affected Component
Analysis
libpcap
Patched
Name
CVE-2023-7256
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.
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
4.4
CVSSv31
4.4
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
libpcap (yocto:kirkstone)
#
Title
Author
Resolve
1
rpcap: improve error messages for host and port resolution
Guy Harris <gharris@sonic.net>
CVE-2023-7256
2
rpcap: try to distringuish between host and port errors.
Guy Harris <gharris@sonic.net>
CVE-2023-7256
3
Have sock_initaddress() return the list of addrinfo
Guy Harris <gharris@sonic.net>
CVE-2023-7256
4
rpcap: don't do pointless integer->string and then
Guy Harris <gharris@sonic.net>
CVE-2023-7256
5
Remove unused variable retval in sock_present2network
Rose <83477269+AtariDreams@users.noreply.github.com>
CVE-2023-7256
libpcap (yocto:scarthgap)
#
Title
Author
Resolve
1
Have sock_initaddress() return the list of addrinfo
Guy Harris <gharris@sonic.net>
CVE-2023-7256
2
Remove unused variable retval in sock_present2network
Rose <83477269+AtariDreams@users.noreply.github.com>
CVE-2023-7256