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    CVE-2021-36386

    report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.

    Published:Jul 28, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 29, 2021
    EPSS Score:0.00203
    CVSS Score:7.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Fetchmail
    Product
    Fetchmail
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

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    References

    http://www.openwall.com/lists/oss-security/2021/07/28/5
    http://www.openwall.com/lists/oss-security/2021/08/09/1
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/
    https://security.gentoo.org/glsa/202209-14
    https://www.fetchmail.info/fetchmail-SA-2021-01.txt
    https://www.fetchmail.info/security.html
    http://www.openwall.com/lists/oss-security/2021/07/28/5
    http://www.openwall.com/lists/oss-security/2021/08/09/1
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGYO5AHSXTCKA4NQC2Z4H3XMMYNAGC77/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIXKO6QW3AUHGJVWKJXBCOVBYJUJRBFC/
    https://security.gentoo.org/glsa/202209-14
    https://www.fetchmail.info/fetchmail-SA-2021-01.txt
    https://www.fetchmail.info/security.html

    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