Denial of service in Wireshark



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-13619
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: #VU19319

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-13619

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input within the ASN.1 BER dissector in epan/asn1.c. A remote attacker can send malicious traffic to the affected application and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wireshark: 2.4.0 - 3.0.2

CPE2.3 External links

http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15870
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=7e90aed666e809c0db5de9d1816802a7dcea28d9
http://www.wireshark.org/security/wnpa-sec-2019-20.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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