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    CVE-2022-43995

    Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.

    Published:Nov 2, 2022
    Last Modified:May 5, 2025
    EPS:Nov 2, 2022
    EPSS Score:0.00072
    CVSS Score:7.1

    Affected Products

    Vendor
    Sudo Project
    Product
    Sudo

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2025-32463 (CVSS 9.3) — Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlle…
    CVE-2025-32462 (CVSS 2.8) — Sudo before 1.9.17p1, when used with a sudoers file that specifies a host that is neither the current host nor…
    CVE-2023-42465 (CVSS 7) — Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because …
    CVE-2023-28487 (CVSS 5.3) — Sudo before 1.9.13 does not escape control characters in sudoreplay output.…
    CVE-2023-28486 (CVSS 5.3) — Sudo before 1.9.13 does not escape control characters in log messages.…
    CVE-2023-27320 (CVSS 7.2) — Sudo before 1.9.13p2 has a double free in the per-command chroot feature.…
    CVE-2023-22809 (CVSS 7.8) — In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided …
    CVE-2021-3156 (CVSS 7.8) — Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows…

    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