osv-2020-1606
Vulnerability from osv_ossfuzz
Published
2020-08-14 00:01
Modified
2022-04-13 03:04
Summary
UNKNOWN READ in hb_set_digest_lowest_bits_t<unsigned long, 4u>::may_have
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24842

Crash type: UNKNOWN READ
Crash state:
hb_set_digest_lowest_bits_t<unsigned long, 4u>::may_have
hb_set_digest_combiner_t<hb_set_digest_lowest_bits_t<unsigned long, 4u>, hb_set_
OT::hb_ot_layout_lookup_accelerator_t::may_have
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "harfbuzz"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "48ad745996159337fb4733561e834a0ffbe3a1ae"
            },
            {
              "fixed": "a5f6f869e80c371665026dfe9d156f0088f2553d"
            }
          ],
          "repo": "https://github.com/harfbuzz/harfbuzz.git",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.7.1",
        "2.7.2"
      ]
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24842\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nhb_set_digest_lowest_bits_t\u003cunsigned long, 4u\u003e::may_have\nhb_set_digest_combiner_t\u003chb_set_digest_lowest_bits_t\u003cunsigned long, 4u\u003e, hb_set_\nOT::hb_ot_layout_lookup_accelerator_t::may_have\n```\n",
  "id": "OSV-2020-1606",
  "modified": "2022-04-13T03:04:33.225527Z",
  "published": "2020-08-14T00:01:09.886475Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24842"
    }
  ],
  "summary": "UNKNOWN READ in hb_set_digest_lowest_bits_t\u003cunsigned long, 4u\u003e::may_have"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.