CVE-2018-14340 describes a denial-of-service vulnerability in Wireshark versions 2.6.0-2.6.1, 2.4.0-2.4.7, and 2.2.0-2.2.15, where dissectors supporting zlib decompression could crash due to a buffer over-read. This high-severity vulnerability (CVSS 7.5) is remotely exploitable with low attack complexity, potentially leading to a complete loss of availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the flaw was addressed by rejecting negative lengths in the affected code.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.2.0, <= 2.2.15CPE matchmatch criteria | cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | ||
>= 2.4.0, <= 2.4.7CPE matchmatch criteria | cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | ||
>= 2.6.0, <= 2.6.1CPE matchmatch criteria | cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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