Integer overflow in Wireshark - CVE-2017-5596
Published: January 25, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33559
CSH Severity: Medium
CVSS v4.0: 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-2017-5596
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Wireshark.org
Affected software:
Wireshark
Wireshark
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Wireshark 2.2.0 to 2.2.3 and 2.0.0 to 2.0.9, the ASTERIX dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-asterix.c by changing a data type to avoid an integer overflow. <a href="http://cwe.mitre.org/data/definitions/835.html">CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')</a>
How to mitigate CVE-2017-5596
Install update from vendor's website.
Sources
- http://www.debian.org/security/2017/dsa-3811
- http://www.securityfocus.com/bid/95795
- http://www.securitytracker.com/id/1037694
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13344
- https://code.wireshark.org/review/#/c/19746/
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=781f03580c81339513bb1238b202b72469a1240b
- https://www.wireshark.org/security/wnpa-sec-2017-01.html