The pcapng_read_if_descr_block function in wiretap/pcapng.c in the pcapng parser in Wireshark 1.12.x before 1.12.8 uses too many levels of pointer indirection, which allows remote attackers to cause a denial of service (incorrect free and application crash) via a crafted packet that triggers interface-filter copying.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-7830 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6 and 7. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4.4 |
|---|---|
| Base Metrics | AV:L/AC:M/Au:N/C:P/I:P/A:P |
| Access Vector | Local |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | wireshark | Will not fix |
| Red Hat Enterprise Linux 6 | wireshark | Will not fix |
| Red Hat Enterprise Linux 5 | wireshark | Will not fix |
Vulmon