Buffer overflow in Wireshark BACapp dissector



Published: 2020-04-09
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-11647
CWE-ID CWE-121
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor Wireshark.org

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU26746

Risk: High

CVSSv3.1:

CVE-ID: CVE-2020-11647

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data in BACapp dissector. A remote attacker can send specially crafted data via the network, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wireshark: 2.6.0 - 3.2.2

Fixed software versions

CPE2.3 External links

http://www.wireshark.org/security/wnpa-sec-2020-07.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474


Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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