Input validation error in wireshark (Alpine package)

1) Input validation error

EUVDB-ID: #VU33842

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-4020

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The dissect_frame function in epan/dissectors/packet-frame.c in the frame metadissector in Wireshark 1.10.x before 1.10.8 interprets a negative integer as a length value even though it was intended to represent an error condition, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wireshark (Alpine package): 1.10.3-r0 - 1.10.7-r0

CPE2.3

• cpe:2.3:o:alpine:wireshark_alpine_package:1.10.7-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:wireshark_alpine_package:1.10.3-r0:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:wireshark_alpine_package:1.10.4-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=f1fc43ca0acb7bc80fed38190f89ba02877af6eb
http://git.alpinelinux.org/aports/commit/?id=e16eebefa59a247fbe4fd4f785b6f872b882860b

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.