Vulnerability Monitor

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CVE-2015-8738

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.

Published

2016-01-04T05:59:29.020

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	wireshark	wireshark	2.0.0	Yes

References

http://www.securitytracker.com/id/1034551 ([email protected])
http://www.wireshark.org/security/wnpa-sec-2015-56.html Vendor Advisory ([email protected])
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11823 ([email protected])
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=858c3f0079f987833fb22eba2c361d1a88ba4103 ([email protected])
https://security.gentoo.org/glsa/201604-05 ([email protected])
http://www.securitytracker.com/id/1034551 (af854a3a-2127-422b-91ae-364da2661108)
http://www.wireshark.org/security/wnpa-sec-2015-56.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11823 (af854a3a-2127-422b-91ae-364da2661108)
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=858c3f0079f987833fb22eba2c361d1a88ba4103 (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201604-05 (af854a3a-2127-422b-91ae-364da2661108)