Medium severity4.4NVD Advisory· Published Aug 31, 2024· Updated Jun 17, 2026
CVE-2023-7256
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
22- osv-coords20 versionspkg:deb/ubuntu/libpcappkg:rpm/opensuse/libpcap&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/libpcap&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/libpcap&distro=openSUSE%20Leap%20Micro%205.5pkg:rpm/opensuse/libpcap&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Micro%205.3pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Micro%205.4pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Micro%205.5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Micro%206.0pkg:rpm/suse/libpcap&distro=SUSE%20Linux%20Micro%206.1
>= 0+ 19 more
- (no CPE)range: >= 0
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.4-150600.3.3.2
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.5-1.1
- (no CPE)range: < 1.9.1-150300.3.3.1
- (no CPE)range: < 1.9.1-150300.3.3.1
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.4-150600.3.3.2
- (no CPE)range: < 1.10.1-150400.3.3.2
- (no CPE)range: < 1.10.4-150600.3.3.2
- (no CPE)range: < 1.8.1-10.6.1
- (no CPE)range: < 1.8.1-10.6.1
- (no CPE)range: < 1.8.1-10.6.1
- (no CPE)range: < 1.8.1-10.6.1
- (no CPE)range: < 1.10.4-3.1
- (no CPE)range: < 1.10.4-slfo.1.1_2.1
- The Tcpdump Group/libpcapv5Range: 1.8.x
Patches
Vulnerability mechanics
References
2News mentions
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