Infinite loop in Wireshark - CVE-2017-7705
Published: April 13, 2017 / Updated: August 4, 2020
Vulnerability identifier: #VU33537
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2017-7705
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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 RPC over RDMA dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-rpcrdma.c by correctly checking for going beyond the maximum offset.
Affected software
Wireshark
Gentoo Linux
Fedora
wireshark (Alpine package)
wireshark
Gentoo Linux
Fedora
wireshark (Alpine package)
wireshark
How to mitigate CVE-2017-7705
Install update from vendor's website.
wireshark (Alpine package) - update to 2.0.12-r0
wireshark - update to 2.2.6-1.fc25
wireshark - update to 2.2.6-1.fc25
External References
- http://www.securityfocus.com/bid/97630
- http://www.securitytracker.com/id/1038262
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13558
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=08d392bbecc8fb666bf979e70a34536007b83ea2
- https://security.gentoo.org/glsa/201706-12
- https://www.wireshark.org/security/wnpa-sec-2017-15.html