The dissector-table implementation in epan/packet.c in Wireshark 1.12.x before 1.12.7 mishandles table searches for empty strings, which allows remote attackers to cause a denial of service (application crash) via a crafted packet, related to the (1) dissector_get_string_handle and (2) dissector_get_default_string_handle functions.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-6243 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the verison of wireshark as shipped with Red Hat Enterprsie Linux 5 and 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 5 and 6.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (wireshark) | RHSA-2015:2393 | 2015-11-19 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 6 | wireshark | Will not fix |
| Red Hat Enterprise Linux 5 | wireshark | Will not fix |
Vulmon