#VU33533 Infinite loop in Wireshark - CVE-2017-7701
Published: April 13, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33533
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-7701
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Wireshark
Wireshark
Software vendor:
Wireshark.org
Wireshark.org
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 BGP dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-bgp.c by using a different integer data type.
Remediation
Install update from vendor's website.
External links
- http://www.securityfocus.com/bid/97632
- http://www.securitytracker.com/id/1038262
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13557
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=fa31f69b407436d0946f84baa0acdcc50962bf7a
- https://security.gentoo.org/glsa/201706-12
- https://www.wireshark.org/security/wnpa-sec-2017-16.html