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    CVE-2015-0285

    The ssl3_client_hello function in s3_clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force attack.

    Published:Mar 19, 2015
    Last Modified:Apr 12, 2025
    EPS:Mar 19, 2015
    EPSS Score:0.03539
    CVSS Score:4.3

    Affected Products

    Vendor
    Openssl
    Product
    Openssl

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-63072 (CVSS 7.5) — Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key s…
    CVE-2026-54874 (CVSS 7.5) — Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to b…
    CVE-2026-14457 (CVSS 7.5) — Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the p…
    CVE-2026-63076 (CVSS 7.5) — Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parame…
    CVE-2026-63074 (CVSS 5.9) — Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) s…
    CVE-2026-63073 (CVSS 9.8) — Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directl…
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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/73234
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202410
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=e1b568dd2462f7cacf98f3d117936c34e2849a6b
    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/73234
    http://www.securitytracker.com/id/1031929
    https://bto.bluecoat.com/security-advisory/sa92
    https://bugzilla.redhat.com/show_bug.cgi?id=1202410
    https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
    https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=e1b568dd2462f7cacf98f3d117936c34e2849a6b
    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