UBUNTU-CVE-2020-29562

    Dashboard / Vulnerabilities / UBUNTU-CVE-2020-29562

    UBUNTU-CVE-2020-29562

    Published: 4 Dec 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-29562
    Aliases:
    USN-5310-1

    Summary:

    Details: The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

    References: https://ubuntu.com/security/CVE-2020-29562, https://sourceware.org/pipermail/libc-alpha/2020-November/119822.html, https://ubuntu.com/security/notices/USN-5310-1, https://www.cve.org/CVERecord?id=CVE-2020-29562

    Affected packages

    Package

    Name: glibc

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.27-3ubuntu1.5

    Affected versions

    2.26-0ubuntu2
    2.26-0ubuntu2.1

    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
    UBUNTU-CVE-2020-29562 | CVE-DB