CVE-2014-4975

Name: CVE-2014-4975
Creator: NVD / NIST
Published: 2014-11-15T20:59:01.453+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.86%

Last modified Jun 17, 2026

CVE-2014-4975 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.86% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

3.86%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Ruby-Lang	Ruby	<= 1.9.3
Ruby-Lang	Ruby	2.0
Ruby-Lang	Ruby	2.0.0
Ruby-Lang	Ruby	2.1
Ruby-Lang	Ruby	2.1.1
Ruby-Lang	Ruby	2.1.2
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Hpc Node	7.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Workstation	7.0
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	14.10

References

http://advisories.mageia.org/MGASA-2014-0472.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1912.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1913.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1914.htmlThird Party Advisory
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=46778Vendor Advisory
http://www.debian.org/security/2015/dsa-3157Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:129Broken Link
http://www.openwall.com/lists/oss-security/2014/07/09/13Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/68474Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2397-1Third Party Advisory
https://bugs.ruby-lang.org/issues/10019Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1118158Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/94706
http://advisories.mageia.org/MGASA-2014-0472.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1912.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1913.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1914.htmlThird Party Advisory
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=46778Vendor Advisory
http://www.debian.org/security/2015/dsa-3157Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:129Broken Link
http://www.openwall.com/lists/oss-security/2014/07/09/13Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
http://www.securityfocus.com/bid/68474Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2397-1Third Party Advisory
https://bugs.ruby-lang.org/issues/10019Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1118158Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/94706

Timeline

Published: Nov 15, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-4975?

How severe is CVE-2014-4975?

Severity scoring for CVE-2014-4975 is pending analysis. The EPSS model estimates a 3.86% probability of exploitation in the next 30 days.

How do I fix CVE-2014-4975?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-4975?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST