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CVE-2015-8738

Published: 4 January 2016

The s7comm_decode_ud_cpu_szl_subfunc function in epan/dissectors/packet-s7comm_szl_ids.c in the S7COMM dissector in Wireshark 2.0.x before 2.0.1 does not validate the list count in an SZL response, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted packet.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
wireshark
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic
Released (2.6.3-1~ubuntu18.04.1)
precise Ignored
(end of life)
trusty
Released (2.6.3-1~ubuntu14.04.1)
upstream Needs triage

wily Ignored
(end of life)
xenial
Released (2.6.3-1~ubuntu16.04.1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
vivid Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H