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    CVE-2021-46880

    x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.

    Published:Apr 14, 2023
    Last Modified:Feb 7, 2025
    EPS:Apr 14, 2023
    EPSS Score:0.00031
    CVSS Score:9.8

    Affected Products

    Vendor
    Openbsd
    Product
    Libressl
    Vendor
    Openbsd
    Product
    Openbsd

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

    Related CVEs

    CVE-2023-35784 (CVSS 9.8) — A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before er…
    CVE-2022-48437 (CVSS 5.3) — An issue was discovered in x509/x509_verify.c in LibreSSL before 3.6.1, and in OpenBSD before 7.2 errata 001. …
    CVE-2021-41581 (CVSS 5.5) — x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL through 3.4.0 has a stack-…
    CVE-2019-25049 (CVSS 7.1) — LibreSSL 2.9.1 through 3.2.1 has an out-of-bounds read in asn1_item_print_ctx (called from asn1_template_print…
    CVE-2019-25048 (CVSS 7.1) — LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx…
    CVE-2015-5333 (CVSS 7.5) — Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of …
    CVE-2015-5334 (CVSS 9.8) — Off-by-one error in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denia…
    CVE-2018-12434 (CVSS 4.7) — LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signat…
    CVE-2018-8970 (CVSS 7.4) — The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0 before 2.7.1 does not…
    CVE-2017-8301 (CVSS 5.3) — LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later…

    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