CVE-2010-4180

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    CVE-2010-4180

    Published: 6 Dec 2010Last Modified: 10 Apr 2026

    Summary:

    Details: OpenSSL before 0.9.8q, and 1.0.x before 1.0.0c, when SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG is enabled, does not properly prevent modification of the ciphersuite in the session cache, which allows remote attackers to force the downgrade to an unintended cipher via vectors involving sniffing network traffic to discover a session identifier.

    References: http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052027.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052315.html, http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html, http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.html, http://marc.info/?l=bugtraq&m=129916880600544&w=2, http://marc.info/?l=bugtraq&m=130497251507577&w=2, http://marc.info/?l=bugtraq&m=132077688910227&w=2, http://openssl.org/news/secadv_20101202.txt, http://secunia.com/advisories/42469, http://secunia.com/advisories/42473, http://secunia.com/advisories/42493, http://secunia.com/advisories/42571, http://secunia.com/advisories/42620, http://secunia.com/advisories/42811, http://secunia.com/advisories/42877, http://secunia.com/advisories/43169, http://secunia.com/advisories/43170, http://secunia.com/advisories/43171, http://secunia.com/advisories/43172, http://secunia.com/advisories/43173, http://secunia.com/advisories/44269, http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668471, http://support.apple.com/kb/HT4723, http://ubuntu.com/usn/usn-1029-1, http://www.debian.org/security/2011/dsa-2141, http://www.kb.cert.org/vuls/id/737740, http://www.redhat.com/support/errata/RHSA-2010-0977.html, http://www.redhat.com/support/errata/RHSA-2010-0978.html, http://www.redhat.com/support/errata/RHSA-2010-0979.html, http://www.redhat.com/support/errata/RHSA-2011-0896.html, http://www.securityfocus.com/archive/1/522176, http://www.securityfocus.com/bid/45164, http://www.securitytracker.com/id?1024822, https://bugzilla.redhat.com/show_bug.cgi?id=659462, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18910, http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052027.html, http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052315.html, http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html, http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.html, http://cvs.openssl.org/chngview?cn=20131, http://openssl.org/news/secadv_20101202.txt, https://bugzilla.redhat.com/show_bug.cgi?id=659462, http://marc.info/?l=bugtraq&m=129916880600544&w=2, http://marc.info/?l=bugtraq&m=130497251507577&w=2, http://marc.info/?l=bugtraq&m=132077688910227&w=2, http://www.mandriva.com/security/advisories?name=MDVSA-2010:248, http://www.vupen.com/english/advisories/2010/3120, http://www.vupen.com/english/advisories/2010/3122, http://www.vupen.com/english/advisories/2010/3134, http://www.vupen.com/english/advisories/2010/3188, http://www.vupen.com/english/advisories/2011/0032, http://www.vupen.com/english/advisories/2011/0076, http://www.vupen.com/english/advisories/2011/0268, https://bugzilla.redhat.com/show_bug.cgi?id=659462, http://cvs.openssl.org/chngview?cn=20131, http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777, http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html, http://osvdb.org/69565, http://www.kb.cert.org/vuls/id/737740, http://www.securitytracker.com/id?1024822, https://kb.bluecoat.com/index?page=content&id=SA53&actp=LIST

    Affected packages

    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
    CVE-2010-4180 | CVE-DB