#VU19319 Input validation error in Wireshark - CVE-2019-13619

Vulnerability identifier: #VU19319

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-13619

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Wireshark
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Wireshark.org

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 - 2.4.15, 2.6.0 - 2.6.9, 3.0.0 - 3.0.2

---

External links
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15870
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=7e90aed666e809c0db5de9d1816802a7dcea28d9
https://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.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.