fkie_cve-2013-4206
Vulnerability from fkie_nvd
Published
2013-08-19 23:55
Modified
2025-04-11 00:51
Severity ?
Summary
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.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
secalert@redhat.comhttp://secunia.com/advisories/54379Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/54533
secalert@redhat.comhttp://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977Patch
secalert@redhat.comhttp://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.htmlVendor Advisory
secalert@redhat.comhttp://www.debian.org/security/2013/dsa-2736
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2013/08/06/11
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/54379Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/54533
af854a3a-2127-422b-91ae-364da2661108http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date&r1=9977&r2=9976&pathrev=9977Patch
af854a3a-2127-422b-91ae-364da2661108http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2736
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2013/08/06/11
Impacted products
Vendor Product Version
putty putty 0.45
putty putty 0.46
putty putty 0.47
putty putty 0.48
putty putty 0.49
putty putty 0.50
putty putty 0.51
putty putty 0.52
putty putty 0.53b
putty putty 0.54
putty putty 0.55
putty putty 0.56
putty putty 0.57
putty putty 0.58
putty putty 0.59
putty putty 0.60
putty putty 0.61
putty putty 2010-06-01
simon_tatham putty *
simon_tatham putty 0.53


To clipboard 

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    }
  ],
  "id": "CVE-2013-4206",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessVector": "NETWORK",
          "authentication": "NONE",
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          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "impactScore": 6.4,
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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  "published": "2013-08-19T23:55:08.723",
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      "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html"
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}


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