CVE-2014-4975

Home/CVE/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

CVE

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

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.

MEDIUM · CVSS 5 EPSS 0.03404

Monitor

No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules3 YARA rules0

⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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Affected Products & Versions

ruby-lang ruby<= 1.9.3
ruby-lang rubyall versions
redhat enterprise linux desktopall versions
redhat enterprise linux hpc nodeall versions
redhat enterprise linux serverall versions
redhat enterprise linux workstationall versions
debian linuxall versions
canonical ubuntu linuxall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productmediumRuby on Rails Framework Exceptions

productmediumPotential Ruby Reverse Shell

productmediumRuby Inline Command Execution

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Published to NVD15 Nov 2014 · 08:59 PM

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Vendor Advisories

rhsaRHSA-2026:7307Moderate
rhsaRHSA-2026:8838Moderate
rhsaRHSA-2026:7305Moderate
suse-csafSUSE-SU-2017:1067-1
rhsaRHSA-2014:1914Moderate
Show all 8 vendor advisoriesrhsaRHSA-2014:1913Moderate
rhsaRHSA-2014:1912Moderate
usnUSN-2397-1

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

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

Show all 14 references

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 AdvisoryVDB 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

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