osv-2023-1343
Vulnerability from osv_ossfuzz
Published
2023-12-22 00:10
Modified
2023-12-22 00:10
Summary
Heap-buffer-overflow in _libssh2_kex_agree_instr
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65212

Crash type: Heap-buffer-overflow READ {*}
Crash state:
_libssh2_kex_agree_instr
_libssh2_packet_add
fullpacket
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "b109f304cf035207907a6177ab628147b13608d5:f52ffc1ccdedcd5a885e85c2d0f0cb872b2b0a7f"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "libssh2",
        "purl": "pkg:generic/libssh2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "d34d9258b8420b19ec3f97b4cc5bf7aa7d98e35a"
            },
            {
              "fixed": "f52ffc1ccdedcd5a885e85c2d0f0cb872b2b0a7f"
            }
          ],
          "repo": "https://github.com/libssh2/libssh2.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65212\n\n```\nCrash type: Heap-buffer-overflow READ {*}\nCrash state:\n_libssh2_kex_agree_instr\n_libssh2_packet_add\nfullpacket\n```\n",
  "id": "OSV-2023-1343",
  "modified": "2023-12-22T00:10:36.347283Z",
  "published": "2023-12-22T00:10:36.346763Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65212"
    }
  ],
  "schema_version": "1.6.0",
  "summary": "Heap-buffer-overflow in _libssh2_kex_agree_instr"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.