#VU13034 Buffer over-read in Wireshark - CVE-2018-11362

Vulnerability identifier: #VU13034

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-11362

CWE-ID: CWE-126

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 attacker to cause DoS condition on the target system.

The weakness exists in epan/dissectors/packet-ldss.c due to buffer over-read upon encountering a missing '' character. A remote attacker can inject a malformed packet onto the wire or convince someone to read a malformed packet trace file, trigger memory corruption and cause the LDSS dissector to crash.

Mitigation
Update to version 2.6.1.

Vulnerable software versions

Wireshark: 2.2.0 - 2.2.14, 2.4.0 - 2.4.6, 2.6.0

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External links
https://www.wireshark.org/security/wnpa-sec-2018-25.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.