libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-2266 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of bind package as shipped with Red Hat Enterprise Linux 3, 4, and 5. This issue was corrected in bind97 packages in Red Hat Enterprise Linux 5 and bind packages in Red Hat Enterprise Linux 6.
| 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 | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 5 (bind97) | RHSA-2013:0690 | 2013-03-28 |
| Red Hat Enterprise Linux 6 (bind) | RHSA-2013:0689 | 2013-03-28 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 5 | bind | Not affected |
| Red Hat Enterprise Linux 4 | bind | Not affected |
Vulmon