Denial of service in Wireshark
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-17498 |
| CWE-ID | CWE-415 |
| 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) Double Free
EUVDB-ID: #VU45824
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-17498
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in Kafka dissector. A remote attacker can pass specially crafted data to the application, trigger double free error and crash the application.
Install updates from vendor's website.
Vulnerable software versionsWireshark: 3.2.0 - 3.2.5
External linkshttp://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16672
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=76afda963de4f0b9be24f2d8e873990a5cbf221b
http://www.wireshark.org/security/wnpa-sec-2020-10.html
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.
