CVE-2018-19623
CVSS v3
7.5
HIGH
EPSS Score
4.2 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2018-19623 Red Hat Product Security
wireshark: Heap buffer overflow in packet-lbmpdm.c:dissect_segment_ofstable() allows denial of service or possibly arbitrary code execution
Description
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.
Technical details
- Published
- 2018-11-29
Frequently asked questions
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