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    CVE-2021-3578

    A flaw was found in mbsync before v1.3.6 and v1.4.2, where an unchecked pointer cast allows a malicious or compromised server to write an arbitrary integer value past the end of a heap-allocated structure by issuing an unexpected APPENDUID response. This could be plausibly exploited for remote code execution on the client.

    Published:Feb 16, 2022
    Last Modified:Nov 21, 2024
    EPS:Feb 16, 2022
    EPSS Score:0.03824
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Isync Project
    Product
    Isync

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://www.openwall.com/lists/oss-security/2021/06/07/1
    https://bugzilla.redhat.com/show_bug.cgi?id=1961710
    https://bugzilla.redhat.com/show_bug.cgi?id=1967397
    https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
    https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
    https://security.gentoo.org/glsa/202208-15
    https://www.openwall.com/lists/oss-security/2021/06/07/1
    http://www.openwall.com/lists/oss-security/2021/06/07/1
    https://bugzilla.redhat.com/show_bug.cgi?id=1961710
    https://bugzilla.redhat.com/show_bug.cgi?id=1967397
    https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
    https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
    https://security.gentoo.org/glsa/202208-15
    https://www.openwall.com/lists/oss-security/2021/06/07/1

    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