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
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.895 High
EPSS
Percentile
98.7%
Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.
Security Fix(es):
It was discovered that the Net::FTP module did not properly process filenames in combination with certain operations. A remote attacker could exploit this flaw to execute arbitrary commands by setting up a malicious FTP server and tricking a user or Ruby application into downloading files with specially crafted names using the Net::FTP module. (CVE-2017-17405)
A buffer underflow was found in ruby’s sprintf function. An attacker, with ability to control its format string parameter, could send a specially crafted string that would disclose heap memory or crash the interpreter. (CVE-2017-0898)
It was found that rubygems did not sanitize gem names during installation of a given gem. A specially crafted gem could use this flaw to install files outside of the regular directory. (CVE-2017-0901)
A vulnerability was found where rubygems did not sanitize DNS responses when requesting the hostname of the rubygems server for a domain, via a _rubygems._tcp DNS SRV query. An attacker with the ability to manipulate DNS responses could direct the gem command towards a different domain. (CVE-2017-0902)
A vulnerability was found where the rubygems module was vulnerable to an unsafe YAML deserialization when inspecting a gem. Applications inspecting gem files without installing them can be tricked to execute arbitrary code in the context of the ruby interpreter. (CVE-2017-0903)
It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences. (CVE-2017-10784)
It was found that the decode method of the OpenSSL::ASN1 module was vulnerable to buffer underrun. An attacker could pass a specially crafted string to the application in order to crash the ruby interpreter, causing a denial of service. (CVE-2017-14033)
A vulnerability was found where rubygems did not properly sanitize gems’ specification text. A specially crafted gem could interact with the terminal via the use of escape sequences. (CVE-2017-0899)
It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary. (CVE-2017-0900)
A buffer overflow vulnerability was found in the JSON extension of ruby. An attacker with the ability to pass a specially crafted JSON input to the extension could use this flaw to expose the interpreter’s heap memory. (CVE-2017-14064)
The “lazy_initialize” function in lib/resolv.rb did not properly process certain filenames. A remote attacker could possibly exploit this flaw to inject and execute arbitrary commands. (CVE-2017-17790)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 7 | s390x | rubygem-psych | < 2.0.0-33.el7_4 | rubygem-psych-2.0.0-33.el7_4.s390x.rpm |
RedHat | 7 | s390x | rubygem-bigdecimal | < 1.2.0-33.el7_4 | rubygem-bigdecimal-1.2.0-33.el7_4.s390x.rpm |
RedHat | 7 | ppc64 | rubygem-psych | < 2.0.0-33.el7_4 | rubygem-psych-2.0.0-33.el7_4.ppc64.rpm |
RedHat | 7 | s390x | rubygem-json | < 1.7.7-33.el7_4 | rubygem-json-1.7.7-33.el7_4.s390x.rpm |
RedHat | 7 | x86_64 | rubygem-bigdecimal | < 1.2.0-33.el7_4 | rubygem-bigdecimal-1.2.0-33.el7_4.x86_64.rpm |
RedHat | 7 | noarch | ruby-irb | < 2.0.0.648-33.el7_4 | ruby-irb-2.0.0.648-33.el7_4.noarch.rpm |
RedHat | 7 | ppc64le | ruby-devel | < 2.0.0.648-33.el7_4 | ruby-devel-2.0.0.648-33.el7_4.ppc64le.rpm |
RedHat | 7 | aarch64 | ruby | < 2.0.0.648-33.el7_4 | ruby-2.0.0.648-33.el7_4.aarch64.rpm |
RedHat | 7 | aarch64 | ruby-tcltk | < 2.0.0.648-33.el7_4 | ruby-tcltk-2.0.0.648-33.el7_4.aarch64.rpm |
RedHat | 7 | ppc | ruby-debuginfo | < 2.0.0.648-33.el7_4 | ruby-debuginfo-2.0.0.648-33.el7_4.ppc.rpm |
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
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.895 High
EPSS
Percentile
98.7%