USN-5379-1

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    USN-5379-1

    Published: 18 Apr 2022Last Modified: 29 Jun 2026

    Summary: klibc vulnerabilities

    Details: It was discovered that klibc did not properly perform some mathematical operations, leading to an integer overflow. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-31870) It was discovered that klibc did not properly handled some memory allocations on 64 bit systems. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-31871) It was discovered that klibc did not properly handled some file sizes values on 32 bit systems. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-31872) It was discovered that klibc did not properly handled some memory allocations. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-31873)

    Affected packages

    Package

    Name: klibc

    Purl: pkg:deb/ubuntu/klibc?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.3-0ubuntu1.14.04.3+esm2

    Affected versions

    2.0.1-3.1ubuntu2
    2.0.2-1ubuntu1
    2.0.2-1ubuntu2
    2.0.3-0ubuntu1
    2.0.3-0ubuntu1.14.04.1
    2.0.3-0ubuntu1.14.04.2
    2.0.3-0ubuntu1.14.04.3

    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
    USN-5379-1 | CVE-DB