High severity · published Jan 25, 2017
CVE-2017-5597
In Wireshark 2.2.0 to 2.2.3 and 2.0.0 to 2.0.9, the DHCPv6 dissector could go into a large loop, triggered by packet injection or a malformed capture file
7.5
CVSS
2%
EPSS
No
On KEV
Description
In Wireshark 2.2.0 to 2.2.3 and 2.0.0 to 2.0.9, the DHCPv6 dissector could go into a large loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-dhcpv6.c by changing a data type to avoid an integer overflow.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Wireshark · Wireshark
2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; +8 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-5597
www.debian.org
http://www.debian.org/security/2017/dsa-3811
www.securityfocus.com
http://www.securityfocus.com/bid/95798
www.securitytracker.com
http://www.securitytracker.com/id/1037694
Issue Tracking
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13345
Patch
https://code.wireshark.org/review/#/c/19747/
code.wireshark.org
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=57894f741f7cc98b46c9fdce7eee8256d2a4ae3f
More from Wireshark
9.8
CVE-2026-76886
Heap-based Buffer Overflow in Wireshark
9.8
CVE-2022-0582
Unaligned access in the CSN.1 protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file
9.8
CVE-2018-6836
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers…
8.8
CVE-2026-95387
Heap-based Buffer Overflow in Wireshark
8.8
CVE-2026-5402
Heap-based Buffer Overflow in Wireshark
