CVE-2015-6242: The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in...

Security readout for executives and security teams

CVE-2015-6242 is a Wireshark crash bug. A specially crafted packet can trigger a memory allocator error while Wireshark processes traffic, causing the application to stop. The supplied sources describe denial of service only, not data theft, privilege escalation, or remote code execution. Exposure is most likely on systems running Wireshark 1.12.x before 1.12.7, especially analyst workstations or packet-processing systems that open untrusted captures or inspect hostile traffic. The source bundle does not prove broader product impact beyond listed distribution and vendor advisories. Treat as a targeted stability and operations risk, not a confirmed breach path. Prioritize remediation where Wireshark is used in security operations or incident response, because crashes during analysis can disrupt investigations and monitoring workflows. Mitigation focus: Upgrade Wireshark 1.12.x deployments to 1.12.7 or later.; Apply relevant Fedora, Debian, openSUSE, or Oracle package updates where applicable.; Avoid opening untrusted packet captures on vulnerable Wireshark builds..

Prepared

Jun 13, 2026, 22:03 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.