CVE-2021-35525

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    CVE-2021-35525

    Published: 28 Jun 2021Last Modified: 9 Jul 2026

    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://github.com/roehling/postsrsd/releases/tag/1.11, https://security.gentoo.org/glsa/202107-08, https://bugs.gentoo.org/793674, https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -67cd6eae8eb0e6dcb4127baff588af07759643ce

    Affected versions

    1.10

    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
    CVE-2021-35525 | CVE-DB