CVE Feed

    Dashboard / CVE / CVE-2021-41581

    CVE-2021-41581

    x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL through 3.4.0 has a stack-based buffer over-read. When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\0' termination.

    Published:Sep 24, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 24, 2021
    EPSS Score:0.00304
    CVSS Score:5.5

    Affected Products

    Vendor
    Openbsd
    Product
    Libressl

    Exploits

    https://github.com/libressl-portable/openbsd/issues/126https://github.com/libressl-portable/openbsd/issues/126

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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-2021-46880 (CVSS 9.8) — x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass b…
    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-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