github - ghsa-pqvw-6c6x-gvwh

GHSA-PQVW-6C6X-GVWH

Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2022-05-24 19:08

Details

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2020-36430"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-20T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.",
  "id": "GHSA-pqvw-6c6x-gvwh",
  "modified": "2022-05-24T19:08:29Z",
  "published": "2022-05-24T19:08:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36430"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632"
    },
    {
      "type": "WEB",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202208-13"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-36430 (GCVE-0-2020-36430)

Vulnerability from cvelistv5 – Published: 2021-07-20 06:47 – Updated: 2024-08-04 17:30

Summary

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/google/oss-fuzz-vulns/blob/mai…	x_refsource_MISC
	https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
	https://github.com/libass/libass/commit/017137471…	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-13	vendor-advisoryx_refsource_GENTOO

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          "dateUpdated": "2024-08-04T17:30:08.337Z",
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        "references": [
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              "x_transferred"
            ],
            "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml"
          },
          {
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            ],
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632"
          },
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          },
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            ],
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          }
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/"
        },
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    "assignerShortName": "mitre",
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    "dateReserved": "2021-07-20T00:00:00",
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}

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.

Action not permitted

GHSA-PQVW-6C6X-GVWH

CVE-2020-36430 (GCVE-0-2020-36430)

Tags

Sightings

Nomenclature