Null pointer dereference in Wireshark - CVE-2017-9343
Published: June 6, 2017
Vulnerability identifier: #VU6905
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-9343
CWE-ID: CWE-476
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 attacker to cause DoS condition on the target system.
The weakness exists due to NULL pointer dereference in the MSNIP dissector when validating an IPv4 address. A remote attacker can inject a malformed packet epan/dissectors/packet-msnip.c onto the wire or persuade the target user to read a malformed packet trace file and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to NULL pointer dereference in the MSNIP dissector when validating an IPv4 address. A remote attacker can inject a malformed packet epan/dissectors/packet-msnip.c onto the wire or persuade the target user to read a malformed packet trace file and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-9343
Update to version 2.0.13, 2.2.7 or later.