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    CVE-2016-5824

    libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

    Published:May 24, 2016
    Last Modified:Apr 20, 2025
    EPS:Jan 27, 2017
    EPSS Score:0.00444
    CVSS Score:5.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Libical Project
    Product
    Libical
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    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://www.openwall.com/lists/oss-security/2016/06/25/4
    http://www.openwall.com/lists/oss-security/2017/01/20/16
    http://www.securityfocus.com/bid/91459
    https://access.redhat.com/errata/RHSA-2019:0269
    https://access.redhat.com/errata/RHSA-2019:0270
    https://bugzilla.mozilla.org/show_bug.cgi?id=1275400
    https://github.com/libical/libical/issues/235
    https://github.com/libical/libical/issues/251
    https://github.com/libical/libical/issues/286
    https://security.gentoo.org/glsa/201904-02
    https://security.gentoo.org/glsa/201904-07
    https://usn.ubuntu.com/3897-1/
    http://www.openwall.com/lists/oss-security/2016/06/25/4
    http://www.openwall.com/lists/oss-security/2017/01/20/16
    http://www.securityfocus.com/bid/91459
    https://access.redhat.com/errata/RHSA-2019:0269
    https://access.redhat.com/errata/RHSA-2019:0270
    https://bugzilla.mozilla.org/show_bug.cgi?id=1275400
    https://github.com/libical/libical/issues/235
    https://github.com/libical/libical/issues/251
    https://github.com/libical/libical/issues/286
    https://security.gentoo.org/glsa/201904-02
    https://security.gentoo.org/glsa/201904-07
    https://usn.ubuntu.com/3897-1/

    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