Input validation error in wireshark (Alpine package)

1) Input validation error

EUVDB-ID: #VU25640

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-9428

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 in EAP dissector within "epan/dissectors/packet-eap.c" . A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wireshark (Alpine package): 2.6.2-r0 - 3.2.2-r0

CPE2.3

• cpe:2.3:o:alpine:wireshark_alpine_package:2.6.2-r0:*:*:*:*:alpine_linux:*:3.8
• cpe:2.3:o:alpine:wireshark_alpine_package:2.6.3-r0:*:*:*:*:alpine_linux:*:3.8
• cpe:2.3:o:alpine:wireshark_alpine_package:2.6.4-r0:*:*:*:*:alpine_linux:*:3.8

External links

https://git.alpinelinux.org/aports/commit/?id=220faeaa22d941085211d64ec55cc1fa6adb9b47
https://git.alpinelinux.org/aports/commit/?id=ab830b3f447d2a610a5b4af655787e7c1a2a1a27
https://git.alpinelinux.org/aports/commit/?id=7dda53dda2a2bc455236263e82c522fde5230cc7

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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