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    CVE-2014-4975

    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.

    Published:Jul 9, 2014
    Last Modified:Apr 12, 2025
    EPS:Nov 15, 2014
    EPSS Score:0.02493
    CVSS Score:5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Hpc Node
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Software Collections
    Vendor
    Ruby-lang
    Product
    Ruby

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    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
    http://www.debian.org/security/2015/dsa-3157
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:129
    http://www.openwall.com/lists/oss-security/2014/07/09/13
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.securityfocus.com/bid/68474
    http://www.ubuntu.com/usn/USN-2397-1
    https://bugs.ruby-lang.org/issues/10019
    https://bugzilla.redhat.com/show_bug.cgi?id=1118158
    https://exchange.xforce.ibmcloud.com/vulnerabilities/94706
    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
    http://www.debian.org/security/2015/dsa-3157
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:129
    http://www.openwall.com/lists/oss-security/2014/07/09/13
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.securityfocus.com/bid/68474
    http://www.ubuntu.com/usn/USN-2397-1
    https://bugs.ruby-lang.org/issues/10019
    https://bugzilla.redhat.com/show_bug.cgi?id=1118158
    https://exchange.xforce.ibmcloud.com/vulnerabilities/94706

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High