GoogleOSV:CVE-2018-8777CVE-2018-8777
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.009 Low
EPSS
Percentile
82.7%
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).
| CPE | Name | Operator | Version |
|---|---|---|---|
| ruby | eq | 2.3.1-r1 | |
| ruby | eq | 1.9.3_p194-r0 | |
| ruby | eq | 1.9.3_p385-r2 | |
| ruby | eq | 2.0.0_p247-r3 | |
| ruby | eq | 1.8.7_p174-r3 | |
| ruby | eq | 1.8.7_p299-r1 | |
| ruby | eq | 2.2.1-r2 | |
| ruby | eq | 1.9.3_p392-r2 | |
| ruby | eq | 1.8.7_p358-r1 | |
| ruby | eq | 2.4.3-r3 |
References
lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
www.securityfocus.com/bid/103683
www.securitytracker.com/id/1042004
access.redhat.com/errata/RHSA-2018:3729
access.redhat.com/errata/RHSA-2018:3730
access.redhat.com/errata/RHSA-2018:3731
access.redhat.com/errata/RHSA-2019:2028
access.redhat.com/errata/RHSA-2020:0542
access.redhat.com/errata/RHSA-2020:0591
access.redhat.com/errata/RHSA-2020:0663
lists.debian.org/debian-lts-announce/2018/04/msg00023.html
lists.debian.org/debian-lts-announce/2018/04/msg00024.html
lists.debian.org/debian-lts-announce/2018/07/msg00012.html
usn.ubuntu.com/3685-1/
www.debian.org/security/2018/dsa-4259
www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/
www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/
www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/
www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/
www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
9.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.009 Low
EPSS
Percentile
82.7%