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    CVE-2022-28321

    The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesn't correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.

    Published:Sep 19, 2022
    Last Modified:May 29, 2025
    EPS:Sep 19, 2022
    EPSS Score:0.00095
    CVSS Score:9.8

    Affected Products

    Vendor
    Linux-pam
    Product
    Linux-pam
    Vendor
    Opensuse
    Product
    Tumbleweed

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2015-3238 (CVSS 6.5) — The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable t…
    CVE-2014-2583 (CVSS 5.8) — Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka…
    CVE-2011-3148 (CVSS 4.6) — Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam)…
    CVE-2011-3149 (CVSS 2.1) — The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5…
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    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