National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-8777 Detail

Current 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).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
http://www.securityfocus.com/bid/103683 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1042004 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:3729 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3730 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3731 Third Party Advisory
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
https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3685-1/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4259 Third Party Advisory
https://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/ 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/ruby-2-3-7-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-2-5-1-released/ Patch Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.2.0
Up to (excluding)
2.2.10
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.3.0
Up to (excluding)
2.3.7
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.4.0
Up to (excluding)
2.4.4
 cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.5.0
Up to (excluding)
2.5.1
 cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

15 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-8777
NVD Published Date:
04/03/2018
NVD Last Modified:
07/21/2019