USN-5768-1

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    USN-5768-1

    Published: 8 Dec 2022Last Modified: 25 Jun 2026

    Summary: glibc vulnerabilities

    Details: Jan Engelhardt, Tavis Ormandy, and others discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. An attacker could possibly use this issue to cause the GNU C Library to hang or crash, resulting in a denial of service. (CVE-2016-10228, CVE-2019-25013, CVE-2020-27618) It was discovered that the GNU C Library did not properly handled DNS responses when ENDS0 is enabled. An attacker could possibly use this issue to cause fragmentation-based attacks. (CVE-2017-12132)

    References: https://ubuntu.com/security/notices/USN-5768-1, https://ubuntu.com/security/CVE-2016-10228, https://ubuntu.com/security/CVE-2017-12132, https://ubuntu.com/security/CVE-2019-25013, https://ubuntu.com/security/CVE-2020-27618

    Affected packages

    Package

    Name: glibc

    Purl: pkg:deb/ubuntu/glibc?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.23-0ubuntu11.3+esm3

    Affected versions

    2.21-0ubuntu4

    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