UBUNTU-CVE-2021-27135

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    UBUNTU-CVE-2021-27135

    Published: 10 Feb 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-27135
    Aliases:
    USN-4746-1

    Summary:

    Details: xterm before Patch #366 allows remote attackers to execute arbitrary code or cause a denial of service (segmentation fault) via a crafted UTF-8 combining character sequence.

    References: https://ubuntu.com/security/CVE-2021-27135, https://www.openwall.com/lists/oss-security/2021/02/09/7, https://www.openwall.com/lists/oss-security/2021/02/09/9, https://www.openwall.com/lists/oss-security/2021/02/10/7, https://ubuntu.com/security/notices/USN-4746-1, https://www.cve.org/CVERecord?id=CVE-2021-27135

    Affected packages

    Package

    Name: xterm

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -322-1ubuntu1.2

    Affected versions

    318-2ubuntu1

    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-2021-27135 | CVE-DB