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    CVE-2015-0291

    The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a renegotiation.

    Published:Mar 19, 2015
    Last Modified:Apr 12, 2025
    EPS:Mar 19, 2015
    EPSS Score:0.12036
    CVSS Score:5

    Affected Products

    Vendor
    Openssl
    Product
    Openssl

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://marc.info/?l=bugtraq&m=143748090628601&w=2
    http://marc.info/?l=bugtraq&m=144050155601375&w=2
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/73235
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202338
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=76343947ada960b6269090638f5391068daee88d
    https://kc.mcafee.com/corporate/index?page=content&id=SB10110
    https://security.gentoo.org/glsa/201503-11
    https://www.openssl.org/news/secadv_20150319.txt
    http://marc.info/?l=bugtraq&m=143748090628601&w=2
    http://marc.info/?l=bugtraq&m=144050155601375&w=2
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/73235
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202338
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=76343947ada960b6269090638f5391068daee88d
    https://kc.mcafee.com/corporate/index?page=content&id=SB10110
    https://security.gentoo.org/glsa/201503-11
    https://www.openssl.org/news/secadv_20150319.txt

    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