osv-2021-1807
Vulnerability from osv_ossfuzz
Published
2022-02-13 00:01
Modified
2022-04-13 03:04
Summary
Heap-use-after-free in dhcp6_no_relay
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44573

Crash type: Heap-use-after-free WRITE 1
Crash state:
dhcp6_no_relay
dhcp6_maybe_relay
dhcp6_maybe_relay
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "756a1dcc1925ed0f2768ededf0e20505ee15b9ff:03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
      },
      "ecosystem_specific": {
        "severity": "HIGH"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "dnsmasq",
        "purl": "pkg:generic/dnsmasq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "96f6444958c29a670f4254722d787f328153605c"
            },
            {
              "fixed": "03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
            }
          ],
          "repo": "git://thekelleys.org.uk/dnsmasq.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "v2.86",
        "v2.86rc1",
        "v2.86rc2",
        "v2.86rc3",
        "v2.86test5",
        "v2.86test6",
        "v2.86test7",
        "v2.87test1",
        "v2.87test2",
        "v2.87test3",
        "v2.87test4",
        "v2.87test5",
        "v2.87test6",
        "v2.87test7",
        "v2.87test8"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44573\n\n```\nCrash type: Heap-use-after-free WRITE 1\nCrash state:\ndhcp6_no_relay\ndhcp6_maybe_relay\ndhcp6_maybe_relay\n```\n",
  "id": "OSV-2021-1807",
  "modified": "2022-04-13T03:04:31.136434Z",
  "published": "2022-02-13T00:01:51.009220Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44573"
    }
  ],
  "schema_version": "1.2.0",
  "summary": "Heap-use-after-free in dhcp6_no_relay"
}


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Detection rules are retrieved from Rulezet.