CVE-2013-2061
The openvpn_decrypt function in crypto.c in OpenVPN 2.3.0 and earlier, when running in UDP mode, allows remote attackers to obtain sensitive information via a timing attack involving an HMAC comparison function that does not run in constant time and a padding oracle attack on the CBC mode cipher.
Published at
2013-11-18T02:55Z
3813 days ago
Modified
2020-05-12T14:21Z
1446 days ago
CWE-200
Problem type
References
URL | Type |
---|---|
github.com https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee | CONFIRM |
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=960192 | CONFIRM |
[oss-security] 20130506 Re: CVE request: OpenVPN use of non-constant-time memcmp in HMAC comparison in openvpn_decrypt http://www.openwall.com/lists/oss-security/2013/05/06/6 | MLIST |
openSUSE-SU-2013:1649 http://lists.opensuse.org/opensuse-updates/2013-11/msg00016.html | SUSE |
openSUSE-SU-2013:1645 http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html | SUSE |
bugs.gentoo.org https://bugs.gentoo.org/show_bug.cgi?id=468756 | CONFIRM |
community.openvpn.net https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc | CONFIRM |
MDVSA-2013:167 http://www.mandriva.com/security/advisories?name=MDVSA-2013:167 | MANDRIVA |
FEDORA-2013-7552 http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105568.html | FEDORA |
FEDORA-2013-7531 http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105609.html | FEDORA |
GET https://vulnerabilitydata.com/api/details/CVE-2013-2061
{ "id": "CVE-2013-2061", "published_date": "2013-11-18T02:55Z", "last_modified_date": "2020-05-12T14:21Z", "assigner": "secalert@redhat.com", "description": "The openvpn_decrypt function in crypto.c in OpenVPN 2.3.0 and earlier, when running in UDP mode, allows remote attackers to obtain sensitive information via a timing attack involving an HMAC comparison function that does not run in constant time and a padding oracle attack on the CBC mode cipher.", "references": [ { "url": "https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee", "name": "https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee", "refsource": "CONFIRM", "tags": [ "Exploit", "Patch" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=960192", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=960192", "refsource": "CONFIRM", "tags": [] }, { "url": "http://www.openwall.com/lists/oss-security/2013/05/06/6", "name": "[oss-security] 20130506 Re: CVE request: OpenVPN use of non-constant-time memcmp in HMAC comparison in openvpn_decrypt", "refsource": "MLIST", "tags": [] }, { "url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00016.html", "name": "openSUSE-SU-2013:1649", "refsource": "SUSE", "tags": [] }, { "url": "http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html", "name": "openSUSE-SU-2013:1645", "refsource": "SUSE", "tags": [ "Vendor Advisory" ] }, { "url": "https://bugs.gentoo.org/show_bug.cgi?id=468756", "name": "https://bugs.gentoo.org/show_bug.cgi?id=468756", "refsource": "CONFIRM", "tags": [] }, { "url": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc", "name": "https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc", "refsource": "CONFIRM", "tags": [] }, { "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:167", "name": "MDVSA-2013:167", "refsource": "MANDRIVA", "tags": [] }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105568.html", "name": "FEDORA-2013-7552", "refsource": "FEDORA", "tags": [] }, { "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105609.html", "name": "FEDORA-2013-7531", "refsource": "FEDORA", "tags": [] } ], "impact": { "baseMetricV2": { "cvssV2": { "version": "2.0", "vectorString": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "accessVector": "NETWORK", "accessComplexity": "HIGH", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 2.6 }, "severity": "LOW", "exploitabilityScore": 4.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } }, "problem_type": "CWE-200" }