CVE-2019-6477

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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).
Overview
  • CVE ID
  • CVE-2019-6477
  • Assigner
  • security-officer@isc.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-11-26T16:15:13
  • Last Modified Date
  • 2020-10-20T12:15:13
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.11.7 9.11.12
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.14.1 9.14.7
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* 1 OR 9.15.0 9.15.5
cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.11.6:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.11.6:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.12.4:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:bind:9.12.4:p2:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://kb.isc.org/docs/cve-2019-6477 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XGURMGQHX45KR4QDRCSUQHODUFOGNGAN/ Third Party Advisory
https://support.f5.com/csp/article/K15840535?utm_source=f5support&utm_medium=RSS Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3DEMNZMKR57VQJCG5ZN55ZGTQRL2TFQ/ Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_39 Third Party Advisory
https://www.debian.org/security/2020/dsa-4689
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-6477
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6477
History
Created Old Value New Value Data Type Notes
2022-05-10 16:23:08 Added to TrackCVE
2022-12-04 07:05:47 2019-11-26T16:15Z 2019-11-26T16:15:13 CVE Published Date updated
2022-12-04 07:05:47 2020-10-20T12:15:13 CVE Modified Date updated
2022-12-04 07:05:47 Modified Vulnerability Status updated