The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Authoritative | Powerdns | * | 3.3.2 (including) |
| Authoritative | Powerdns | 3.4.0 (including) | 3.4.0 (including) |
| Authoritative | Powerdns | 3.4.1 (including) | 3.4.1 (including) |
| Authoritative | Powerdns | 3.4.2 (including) | 3.4.2 (including) |
| Authoritative | Powerdns | 3.4.3 (including) | 3.4.3 (including) |
| Authoritative | Powerdns | 3.4.4 (including) | 3.4.4 (including) |
| Pdns | Ubuntu | trusty | * |
| Pdns | Ubuntu | upstream | * |
| Pdns | Ubuntu | utopic | * |
| Pdns | Ubuntu | vivid | * |
| Pdns-recursor | Ubuntu | trusty | * |
| Pdns-recursor | Ubuntu | upstream | * |
| Pdns-recursor | Ubuntu | utopic | * |
| Pdns-recursor | Ubuntu | vivid | * |
References
- http://www.openwall.com/lists/oss-security/2015/07/07/6
- http://www.openwall.com/lists/oss-security/2015/07/10/8
- https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/
- http://www.openwall.com/lists/oss-security/2015/07/07/6
- http://www.openwall.com/lists/oss-security/2015/07/10/8
- https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/