Input validation error in Wireshark

1) Input validation error

EUVDB-ID: #VU33842

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-4020

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The dissect_frame function in epan/dissectors/packet-frame.c in the frame metadissector in Wireshark 1.10.x before 1.10.8 interprets a negative integer as a length value even though it was intended to represent an error condition, 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: 1.10.0 - 1.10.7

CPE2.3

• cpe:2.3:a:wireshark_org:wireshark:1.10.7:*:*:*:*:*:*:*

External links

http://lists.opensuse.org/opensuse-updates/2014-06/msg00049.html
http://www.wireshark.org/security/wnpa-sec-2014-07.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=10030
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9999
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=beb119f911a698d44f4baa06d888bb1e775983bc

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.