Vulnerability identifier: #VU33532

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7700

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Debian Linux
Operating systems & Components / Operating system

Vendor: Debian

Description

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

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the NetScaler file parser could go into an infinite loop, triggered by a malformed capture file. This was addressed in wiretap/netscaler.c by ensuring a nonzero record size.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Debian Linux: 8.0

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External links
http://www.securityfocus.com/bid/97631
http://www.securitytracker.com/id/1038262
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13478
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=8fc0af859de4993951a915ad735be350221f3f53
http://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
http://security.gentoo.org/glsa/201706-12
http://www.wireshark.org/security/wnpa-sec-2017-14.html

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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.