Published: 04/01/2016 Updated: 07/11/2023

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8

VMScore: 383

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

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 prior to 2.0.1 does not validate the list count in an SZL response, which allows remote malicious users to cause a denial of service (divide-by-zero error and application crash) via a crafted packet.

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wireshark wireshark 2.0.0

The s7comm_decode_ud_cpu_szl_subfunc function in epan/dissectors/packet-s7comm_szl_idsc in the S7COMM dissector in Wireshark 20x before 201 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 ...

CWE-20 http://www.wireshark.org/security/wnpa-sec-2015-56.html https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11823 https://security.gentoo.org/glsa/201604-05 http://www.securitytracker.com/id/1034551 https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=858c3f0079f987833fb22eba2c361d1a88ba4103 https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2015-8738

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CVE-2015-8738

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