In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the P_MUL dissector could crash. This was addressed in epan/dissectors/packet-p_mul.c by rejecting the invalid sequence number of zero.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-5717 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 3.5 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
Attack Vector | Adjacent Network |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | None |
Availability Impact | Low |
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 7 | wireshark | Not affected |
Red Hat Enterprise Linux 6 | wireshark | Not affected |
Red Hat Enterprise Linux 5 | wireshark | Not affected |