{"cve":"CVE-2014-4975","nvd":{"published":"2014-11-15T20:59:01.453","modified":"2026-06-17T00:10:51.533","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://advisories.mageia.org/MGASA-2014-0472.html","http://rhn.redhat.com/errata/RHSA-2014-1912.html","http://rhn.redhat.com/errata/RHSA-2014-1913.html","http://rhn.redhat.com/errata/RHSA-2014-1914.html","http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=46778"],"products":["canonical:ubuntu_linux","debian:debian_linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_hpc_node","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation","ruby-lang:ruby"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-4975","score":0.03456,"percentile":0.8903,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}