CVE-2014-4975

ruby: off-by-one stack-based buffer overflow in the encodes() function

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Off-by-one error in the encodes function in pack.c in Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when using certain format string specifiers, allows context-dependent attackers to cause a denial of service (segmentation fault) via vectors that trigger a stack-based buffer overflow.

Error de superación de límite (off-by-one) en la función de codificación ubicada en pack.c en Ruby 1.9.3 y anteriores, y 2.x hasta 2.1.2, cuando se utilizan ciertos especificadores de formato de cadena, permite a atacantes dependientes de contexto provocar una denegación de servicio (fallo de segmentación) a través de vectores que provocan un desbordamiento de buffer basado en pila.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-07-15 CVE Reserved
2014-11-04 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121: Stack-based Buffer Overflow

CAPEC

References (15)

URL	Tag	Source
http://advisories.mageia.org/MGASA-2014-0472.html	Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/07/09/13	Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	Third Party Advisory
http://www.securityfocus.com/bid/68474	Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/94706	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2014-1912.html	2017-08-29
http://rhn.redhat.com/errata/RHSA-2014-1913.html	2017-08-29
http://rhn.redhat.com/errata/RHSA-2014-1914.html	2017-08-29
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=46778	2017-08-29
http://www.debian.org/security/2015/dsa-3157	2017-08-29
http://www.mandriva.com/security/advisories?name=MDVSA-2015:129	2017-08-29
http://www.ubuntu.com/usn/USN-2397-1	2017-08-29
https://bugs.ruby-lang.org/issues/10019	2017-08-29
https://bugzilla.redhat.com/show_bug.cgi?id=1118158	2014-11-26
https://access.redhat.com/security/cve/CVE-2014-4975	2014-11-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				<= 1.9.3 Search vendor "Ruby-lang" for product "Ruby" and version " <= 1.9.3"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		p0		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		p195		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		p247		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		rc1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.0.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.0.0"		rc2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.1 Search vendor "Ruby-lang" for product "Ruby" and version "2.1"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.1 Search vendor "Ruby-lang" for product "Ruby" and version "2.1"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.1.1 Search vendor "Ruby-lang" for product "Ruby" and version "2.1.1"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.1.2 Search vendor "Ruby-lang" for product "Ruby" and version "2.1.2"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Hpc Node Search vendor "Redhat" for product "Enterprise Linux Hpc Node"				7.0 Search vendor "Redhat" for product "Enterprise Linux Hpc Node" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.10"		-		Affected