9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.0%
Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a ‘\0’ byte, returning a pointer to a string of length zero, which is not the length stored in space_len.
CPE | Name | Operator | Version |
---|---|---|---|
ruby | eq | 2.3.1-r1 | |
ruby | eq | 1.9.3_p194-r0 | |
json | eq | 1.2.3 | |
json | eq | 1.2.1 | |
ruby | eq | 1.9.3_p385-r2 | |
ruby | eq | 2.0.0_p247-r3 | |
json | eq | 1.5.0 | |
ruby | eq | 1.8.7_p174-r3 | |
ruby | eq | 1.8.7_p299-r1 | |
ruby | eq | 2.2.1-r2 |
www.securityfocus.com/bid/100890
www.securitytracker.com/id/1039363
www.securitytracker.com/id/1042004
access.redhat.com/errata/RHSA-2017:3485
access.redhat.com/errata/RHSA-2018:0378
access.redhat.com/errata/RHSA-2018:0583
access.redhat.com/errata/RHSA-2018:0585
bugs.ruby-lang.org/issues/13853
github.com/flori/json/commit/8f782fd8e181d9cfe9387ded43a5ca9692266b85
hackerone.com/reports/209949
lists.debian.org/debian-lts-announce/2018/07/msg00012.html
security.gentoo.org/glsa/201710-18
usn.ubuntu.com/3685-1/
www.debian.org/security/2017/dsa-3966
www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/
www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
78.0%