ghsa-h3qw-gcpw-f6mg
Vulnerability from github
Published
2022-05-13 01:07
Modified
2022-05-13 01:07
Details
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.
{ "affected": [], "aliases": [ "CVE-2013-4206" ], "database_specific": { "cwe_ids": [ "CWE-119" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2013-08-19T23:55:00Z", "severity": "MODERATE" }, "details": "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.", "id": "GHSA-h3qw-gcpw-f6mg", "modified": "2022-05-13T01:07:24Z", "published": "2022-05-13T01:07:24Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4206" }, { "type": "WEB", "url": "http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html" }, { "type": "WEB", "url": "http://secunia.com/advisories/54379" }, { "type": "WEB", "url": "http://secunia.com/advisories/54533" }, { "type": "WEB", "url": "http://svn.tartarus.org/sgt/putty/sshbn.c?sortby=date\u0026r1=9977\u0026r2=9976\u0026pathrev=9977" }, { "type": "WEB", "url": "http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-modmul.html" }, { "type": "WEB", "url": "http://www.debian.org/security/2013/dsa-2736" }, { "type": "WEB", "url": "http://www.openwall.com/lists/oss-security/2013/08/06/11" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
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Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.