resolver.c in named in ISC BIND 9.10.x before 9.10.3-P4, when DNS cookies are enabled, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed packet with more than one cookie option.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-2088 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of bind97 as shipped with Red Hat Enterprise Linux 5 and bind as shipped with Red Hat Enterprise Linux 5, 6, and 7 as they did not include support for DNS cookies.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| 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 | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | bind | Not affected |
| Red Hat Enterprise Linux 6 | bind | Not affected |
| Red Hat Enterprise Linux 5 | bind97 | Not affected |
| Red Hat Enterprise Linux 5 | bind | Not affected |
| Red Hat Enterprise Linux 4 | bind | Not affected |
Vulmon