Resource Exhaustion Affecting bind package, versions <9.14.8-r0
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Test your applications- Snyk ID SNYK-ALPINE311-BIND-544559
- published 20 Nov 2019
- disclosed 26 Nov 2019
Introduced: 20 Nov 2019
CVE-2019-6477 Open this link in a new tabHow to fix?
Upgrade Alpine:3.11 bind to version 9.14.8-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bind package and not the bind package as distributed by Alpine.
See How to fix? for Alpine:3.11 relevant fixed versions and status.
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).
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6477
- https://kb.isc.org/docs/cve-2019-6477
- https://support.f5.com/csp/article/K15840535?utm_source=f5support&utm_medium=RSS
- https://www.synology.com/security/advisory/Synology_SA_19_39
- https://www.debian.org/security/2020/dsa-4689
- https://security-tracker.debian.org/tracker/CVE-2019-6477
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3DEMNZMKR57VQJCG5ZN55ZGTQRL2TFQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XGURMGQHX45KR4QDRCSUQHODUFOGNGAN/
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-6477
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3DEMNZMKR57VQJCG5ZN55ZGTQRL2TFQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGURMGQHX45KR4QDRCSUQHODUFOGNGAN/
- https://support.f5.com/csp/article/K15840535?utm_source=f5support&%3Butm_medium=RSS