Input validation error in Wireshark



| Updated: 2020-08-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-4020
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 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: #VU33842

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

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 External links

https://lists.opensuse.org/opensuse-updates/2014-06/msg00049.html
https://www.wireshark.org/security/wnpa-sec-2014-07.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=10030
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9999
https://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.



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