Denial of service in Wireshark



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-13164
CWE-ID CWE-400
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) Resource exhaustion

EUVDB-ID: #VU28181

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13164

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources in NFS dissector. A remote attacker can inject a malformed packet onto the wire or trick a victim to read a malformed packet trace file and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wireshark: 2.6.0 - 3.2.3

CPE2.3 External links

http://www.wireshark.org/security/wnpa-sec-2020-08.html
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16476
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=e6e98eab8e5e0bbc982cfdc808f2469d7cab6c5a


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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