Input validation error in Wireshark



Published: 2016-08-07 | Updated: 2020-07-28
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-6509
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor Wireshark.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU32254

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6509

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

epan/dissectors/packet-ldss.c in the LDSS dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 mishandles conversations, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Wireshark: 1.12.0 - 1.12.12

CPE2.3 External links

http://openwall.com/lists/oss-security/2016/07/28/3
http://www.debian.org/security/2016/dsa-3648
http://www.securitytracker.com/id/1036480
http://www.wireshark.org/security/wnpa-sec-2016-45.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12662
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=5a469ddc893f7c1912d0e15cc73bd3011e6cc2fb


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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