osv-2021-1502
Vulnerability from osv_ossfuzz
Published
2021-10-29 00:01
Modified
2022-04-13 03:04
Summary
Heap-buffer-overflow in asn_realloc_rbuild_string
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40431

Crash type: Heap-buffer-overflow READ {*}
Crash state:
asn_realloc_rbuild_string
snmpv3_scopedPDU_header_realloc_rbuild
snmpv3_packet_realloc_rbuild
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "net-snmp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8babb2d078f83a4956c7cf70a013c80f78e6f71d"
            },
            {
              "fixed": "abd1c594422eefed24c9586724d58525a7628226"
            }
          ],
          "repo": "https://github.com/net-snmp/net-snmp",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40431\n\n```\nCrash type: Heap-buffer-overflow READ {*}\nCrash state:\nasn_realloc_rbuild_string\nsnmpv3_scopedPDU_header_realloc_rbuild\nsnmpv3_packet_realloc_rbuild\n```\n",
  "id": "OSV-2021-1502",
  "modified": "2022-04-13T03:04:35.795166Z",
  "published": "2021-10-29T00:01:25.958637Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40431"
    }
  ],
  "summary": "Heap-buffer-overflow in asn_realloc_rbuild_string"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.