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    CVE-2020-12105

    OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.

    Published:Apr 23, 2020
    Last Modified:Nov 21, 2024
    EPS:Apr 23, 2020
    EPSS Score:0.00171
    CVSS Score:5.9

    Affected Products

    Vendor
    Infradead
    Product
    Openconnect
    Vendor
    Opensuse
    Product
    Leap

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2020-12823 (CVSS 9.8) — OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecifie…
    CVE-2013-7098 (CVSS 9.8) — OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.…
    CVE-2019-16239 (CVSS 9.8) — process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunk…
    CVE-2012-6128 (CVSS 5) — Multiple stack-based buffer overflows in http.c in OpenConnect before 4.08 allow remote VPN gateways to cause …
    CVE-2012-3291 (CVSS 7.8) — Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafte…
    CVE-2009-5009 (CVSS 5) — Double free vulnerability in OpenConnect before 1.40 might allow remote AnyConnect SSL VPN servers to cause a …
    CVE-2010-3901 (CVSS 6.4) — OpenConnect before 2.25 does not properly validate X.509 certificates, which allows man-in-the-middle attacker…
    CVE-2010-3902 (CVSS 5) — OpenConnect before 2.26 places the webvpn cookie value in the debugging output, which might allow remote attac…
    CVE-2010-3903 (CVSS 5) — Unspecified vulnerability in OpenConnect before 2.23 allows remote AnyConnect SSL VPN servers to cause a denia…

    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