CVE-2018-8777

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker can pass a large HTTP request with a crafted header to WEBrick server or a crafted body to WEBrick server/handler and cause a denial of service (memory consumption).
Overview
  • CVE ID
  • CVE-2018-8777
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-04-03T22:29:00
  • Last Modified Date
  • 2019-07-21T12:15:15
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:ruby-lang:ruby:*:*:*:*:*:*:*:* 1 OR 2.2.0 2.2.10
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* 1 OR 2.3.0 2.3.7
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* 1 OR 2.4.0 2.4.4
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* 1 OR 2.5.0 2.5.1
cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:* 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
  • 3.0
  • Vector String
  • CVSS:3.0/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://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/ Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/ Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/ Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/ Vendor Advisory
http://www.securityfocus.com/bid/103683 Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html Third Party Advisory
https://usn.ubuntu.com/3685-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html Mailing List Third Party Advisory
https://www.debian.org/security/2018/dsa-4259 Third Party Advisory
http://www.securitytracker.com/id/1042004 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:3731 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3730 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3729 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
https://access.redhat.com/errata/RHSA-2019:2028
https://access.redhat.com/errata/RHSA-2020:0542
https://access.redhat.com/errata/RHSA-2020:0591
https://access.redhat.com/errata/RHSA-2020:0663
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-8777
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8777
History
Created Old Value New Value Data Type Notes
2022-05-10 17:40:39 Added to TrackCVE
2022-12-03 04:17:43 2018-04-03T22:29Z 2018-04-03T22:29:00 CVE Published Date updated
2022-12-03 04:17:43 2019-07-21T12:15:15 CVE Modified Date updated
2022-12-03 04:17:43 Modified Vulnerability Status updated