Security update for libpcap SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:20059-1 Final 1 1 2025-02-03T08:57:33Z current 2025-02-03T08:57:33Z 2025-02-03T08:57:33Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libpcap This update for libpcap fixes the following issues: - CVE-2024-8006: Fixed NULL pointer dereference in pcap_findalldevs_ex() (bsc#1230034) - CVE-2023-7256: Fixed double free via addrinfo in sock_initaddress() (bsc#1230020) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.0-50 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202520059-1/ Link for SUSE-SU-2025:20059-1 https://lists.suse.com/pipermail/sle-security-updates/2025-June/021281.html E-Mail link for SUSE-SU-2025:20059-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1230020 SUSE Bug 1230020 https://bugzilla.suse.com/1230034 SUSE Bug 1230034 https://www.suse.com/security/cve/CVE-2023-7256/ SUSE CVE CVE-2023-7256 page https://www.suse.com/security/cve/CVE-2024-8006/ SUSE CVE CVE-2024-8006 page SUSE Linux Micro 6.0 libpcap1-1.10.4-3.1 libpcap1-1.10.4-3.1 as a component of SUSE Linux Micro 6.0 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. CVE-2023-7256 SUSE Linux Micro 6.0:libpcap1-1.10.4-3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520059-1/ https://www.suse.com/security/cve/CVE-2023-7256.html CVE-2023-7256 https://bugzilla.suse.com/1230020 SUSE Bug 1230020 Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally means a directory with input data files. When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence. CVE-2024-8006 SUSE Linux Micro 6.0:libpcap1-1.10.4-3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520059-1/ https://www.suse.com/security/cve/CVE-2024-8006.html CVE-2024-8006 https://bugzilla.suse.com/1230034 SUSE Bug 1230034