Vulnerability identifier: #VU33217

Vulnerability 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-2019-10897

CWE-ID: CWE-399

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 non-authenticated attacker to perform a denial of service (DoS) attack.

In Wireshark 3.0.0, the IEEE 802.11 dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-ieee80211.c by detecting cases in which the bit offset does not advance.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wireshark: 3.0.0

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
http://www.securityfocus.com/bid/107836
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15553
http://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=00d5e9e9fb377f52ab7696f25c1dbc011ef0244d
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4LYIOOQIMFQ3PA7AFBK4DNXHISTEYUC5/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PU3QA2DUO3XS24QE24CQRP4A4XQQY76R/
http://www.wireshark.org/security/wnpa-sec-2019-11.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.