CVE-2010-4180

Name: CVE-2010-4180
Creator: NVD / NIST
Published: 2010-12-06T21:05:48.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 9.50%

Last modified Jun 16, 2026

CVE-2010-4180 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 9.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

9.50%

94.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Openssl	Openssl	< 0.9.8q	—
Openssl	Openssl	>= 1.0.0, < 1.0.0c	—
Fedoraproject	Fedora	13	—
Fedoraproject	Fedora	14	—
Debian	Debian Linux	5.0	—
Canonical	Ubuntu Linux	6.06	—
Canonical	Ubuntu Linux	8.04	—
Canonical	Ubuntu Linux	9.04	—
Canonical	Ubuntu Linux	10.04	—
Canonical	Ubuntu Linux	10.10	—
Opensuse	Opensuse	11.1	—
Opensuse	Opensuse	11.2	—
Opensuse	Opensuse	11.3	—
Opensuse	Opensuse	11.4	—
Suse	Linux Enterprise	11.0	Sp1
Suse	Linux Enterprise Desktop	10	Sp3
Suse	Linux Enterprise Desktop	11	Sp1
Suse	Linux Enterprise Server	9	—
Suse	Linux Enterprise Server	10	Sp3
F5	Nginx	< 0.9.2	—

References

http://cvs.openssl.org/chngview?cn=20131Broken Link, Patch
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777Broken Link
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.htmlBroken Link, Mailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052027.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052315.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.htmlMailing List, Third Party Advisory
http://marc.info/?l=bugtraq&m=129916880600544&w=2Issue Tracking, Third Party Advisory
http://marc.info/?l=bugtraq&m=130497251507577&w=2Issue Tracking, Third Party Advisory
http://marc.info/?l=bugtraq&m=132077688910227&w=2Issue Tracking, Third Party Advisory
http://openssl.org/news/secadv_20101202.txtPatch, Third Party Advisory
http://osvdb.org/69565Broken Link
http://secunia.com/advisories/42469Not Applicable
http://secunia.com/advisories/42473Not Applicable
http://secunia.com/advisories/42493Not Applicable
http://secunia.com/advisories/42571Not Applicable
http://secunia.com/advisories/42620Not Applicable
http://secunia.com/advisories/42811Not Applicable
http://secunia.com/advisories/42877Not Applicable
http://secunia.com/advisories/43169Not Applicable
http://secunia.com/advisories/43170Not Applicable
http://secunia.com/advisories/43171Not Applicable
http://secunia.com/advisories/43172Not Applicable
http://secunia.com/advisories/43173Not Applicable
http://secunia.com/advisories/44269Not Applicable
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668471Third Party Advisory
http://support.apple.com/kb/HT4723Third Party Advisory
http://ubuntu.com/usn/usn-1029-1Third Party Advisory
http://www.debian.org/security/2011/dsa-2141Third Party Advisory
http://www.kb.cert.org/vuls/id/737740Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2010:248Permissions Required
http://www.redhat.com/support/errata/RHSA-2010-0977.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0978.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0979.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2011-0896.htmlVendor Advisory
http://www.securityfocus.com/archive/1/522176Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/45164Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1024822Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2010/3120Permissions Required
http://www.vupen.com/english/advisories/2010/3122Permissions Required
http://www.vupen.com/english/advisories/2010/3134Permissions Required
http://www.vupen.com/english/advisories/2010/3188Permissions Required
http://www.vupen.com/english/advisories/2011/0032Permissions Required
http://www.vupen.com/english/advisories/2011/0076Permissions Required
http://www.vupen.com/english/advisories/2011/0268Permissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=659462Issue Tracking, Patch, Third Party Advisory
https://kb.bluecoat.com/index?page=content&id=SA53&actp=LISTBroken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18910Third Party Advisory
http://cvs.openssl.org/chngview?cn=20131Broken Link, Patch
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777Broken Link
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.htmlBroken Link, Mailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052027.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052315.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.htmlMailing List, Third Party Advisory
http://marc.info/?l=bugtraq&m=129916880600544&w=2Issue Tracking, Third Party Advisory
http://marc.info/?l=bugtraq&m=130497251507577&w=2Issue Tracking, Third Party Advisory
http://marc.info/?l=bugtraq&m=132077688910227&w=2Issue Tracking, Third Party Advisory
http://openssl.org/news/secadv_20101202.txtPatch, Third Party Advisory
http://osvdb.org/69565Broken Link
http://secunia.com/advisories/42469Not Applicable
http://secunia.com/advisories/42473Not Applicable
http://secunia.com/advisories/42493Not Applicable
http://secunia.com/advisories/42571Not Applicable
http://secunia.com/advisories/42620Not Applicable
http://secunia.com/advisories/42811Not Applicable
http://secunia.com/advisories/42877Not Applicable
http://secunia.com/advisories/43169Not Applicable
http://secunia.com/advisories/43170Not Applicable
http://secunia.com/advisories/43171Not Applicable
http://secunia.com/advisories/43172Not Applicable
http://secunia.com/advisories/43173Not Applicable
http://secunia.com/advisories/44269Not Applicable
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668471Third Party Advisory
http://support.apple.com/kb/HT4723Third Party Advisory
http://ubuntu.com/usn/usn-1029-1Third Party Advisory
http://www.debian.org/security/2011/dsa-2141Third Party Advisory
http://www.kb.cert.org/vuls/id/737740Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDVSA-2010:248Permissions Required
http://www.redhat.com/support/errata/RHSA-2010-0977.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0978.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0979.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2011-0896.htmlVendor Advisory
http://www.securityfocus.com/archive/1/522176Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/45164Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1024822Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2010/3120Permissions Required
http://www.vupen.com/english/advisories/2010/3122Permissions Required
http://www.vupen.com/english/advisories/2010/3134Permissions Required
http://www.vupen.com/english/advisories/2010/3188Permissions Required
http://www.vupen.com/english/advisories/2011/0032Permissions Required
http://www.vupen.com/english/advisories/2011/0076Permissions Required
http://www.vupen.com/english/advisories/2011/0268Permissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=659462Issue Tracking, Patch, Third Party Advisory
https://kb.bluecoat.com/index?page=content&id=SA53&actp=LISTBroken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18910Third Party Advisory

Timeline

Published: Dec 6, 2010
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-4180?

How severe is CVE-2010-4180?

Severity scoring for CVE-2010-4180 is pending analysis. The EPSS model estimates a 9.50% probability of exploitation in the next 30 days.

How do I fix CVE-2010-4180?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST