UBUNTU-CVE-2021-35525

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    UBUNTU-CVE-2021-35525

    Published: 28 Jun 2021Last Modified: 20 May 2026
    Upstream:
    CVE-2021-35525

    Summary:

    Details: PostSRSd before 1.11 allows a denial of service (subprocess hang) if Postfix sends certain long data fields such as multiple concatenated email addresses. NOTE: the PostSRSd maintainer acknowledges "theoretically, this error should never occur ... I'm not sure if there's a reliable way to trigger this condition by an external attacker, but it is a security bug in PostSRSd nevertheless."

    References: https://ubuntu.com/security/CVE-2021-35525, https://bugs.gentoo.org/793674, https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2, https://github.com/roehling/postsrsd/releases/tag/1.11, https://www.cve.org/CVERecord?id=CVE-2021-35525

    Affected packages

    Package

    Name: postsrsd

    Purl: pkg:deb/ubuntu/postsrsd?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.2-1

    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-2021-35525 | CVE-DB