Synology-SA-19:39 ISC BIND
Publish Time: 2019-11-26 16:56:55 UTC+8
Last Updated: 2019-12-17 15:05:21 UTC+8
- Severity
- Not affected
- Status
- Resolved
Abstract
None of Synology products are affected by CVE-2019-6477 as this vulnerability only affect ISC BIND 9.11.0 and later.
Affected Products
| Product | Severity | Fixed Release Availability |
|---|---|---|
| DNS Server | Not affected | N/A |
Mitigation
None
Detail
- CVE-2019-6477
- Severity: Not affected
- CVSS3 Base Score: 0.0
- CVSS3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
- With pipelining enabled each incoming query on a TCP connection requires a similar resource allocation to a query received via UDP or via TCP without pipelining enabled. A client using a TCP-pipelined connection to a server could consume more resources than the server has been provisioned to handle. When a TCP connection with a large number of pipelined queries is closed, the load on the server releasing these multiple resources can cause it to become unresponsive, even for queries that can be answered authoritatively or from cache. (This is most likely to be perceived as an intermittent server problem).
Reference
Revision
| Revision | Date | Description |
|---|---|---|
| 1 | 2019-11-26 | Initial public release. |
| 2 | 2019-12-17 | Disclosed vulnerability details. |