CVE-2013-4206

{"id": "CVE-2013-4206", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2013-08-19T23:55:08.723", "references": [{"url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html", "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/54379", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/54533", "source": "secalert@redhat.com"}, {"url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2013/dsa-2736", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2013/08/06/11", "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication."}, {"lang": "es", "value": "Desbordamiento de b\u00fafer basado en memoria din\u00e1mica en la funci\u00f3n modmul en sshbn.c en PuTTY 0.62 y anteriores, permite a servidores SSH remotos provocar una denegaci\u00f3n de servicio (ca\u00edda) y posiblemente causar una corrupci\u00f3n de memoria o ejecuci\u00f3n de c\u00f3digo a trav\u00e9s de una firma DSA manipulada que no es manejada adecuadamente cuando se realizan determinadas operaciones de bit-shifting durante una multiplicaci\u00f3n modular."}], "lastModified": "2021-08-06T16:58:10.337", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:putty:putty:0.45:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D5EB349-B1DF-4CF5-9468-37DC66A929C3"}, {"criteria": "cpe:2.3:a:putty:putty:0.46:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CF223411-6FA4-43EC-8668-7DB4A98E4DEA"}, {"criteria": "cpe:2.3:a:putty:putty:0.47:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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