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    CVE-2012-3291

    Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.

    Published:Jun 7, 2012
    Last Modified:Apr 11, 2025
    EPS:Jun 7, 2012
    EPSS Score:0.0115
    CVSS Score:7.8

    Affected Products

    Vendor
    Infradead
    Product
    Openconnect

    Exploits

    No exploit reference

    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-2020-12105 (CVSS 5.9) — OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist…
    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-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…

    References

    http://git.infradead.org/users/dwmw2/openconnect.git/commitdiff/14cae65318d3ef1f7d449e463b72b6934e82f1c2
    http://lists.fedoraproject.org/pipermail/package-announce/2012-May/079747.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00186.html
    http://www.debian.org/security/2012/dsa-2495
    http://www.infradead.org/openconnect/changelog.html
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17242
    http://git.infradead.org/users/dwmw2/openconnect.git/commitdiff/14cae65318d3ef1f7d449e463b72b6934e82f1c2
    http://lists.fedoraproject.org/pipermail/package-announce/2012-May/079747.html
    http://lists.opensuse.org/opensuse-updates/2013-06/msg00186.html
    http://www.debian.org/security/2012/dsa-2495
    http://www.infradead.org/openconnect/changelog.html
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17242

    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