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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-36328

A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-36328
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:49 UTC · Revision 1

Source evidence

CVE-2020-36328

core-osv · Original source

Published 21 May 2021, 17:15 UTC

A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

osv:CVE-2020-36328
Complete source record
{
  "id": "54471a36b91607173b86f5db98ce7f70abbb5964636bc5371573c9400699fd76",
  "url": "https://osv.dev/vulnerability/CVE-2020-36328",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36328",
    "summary": "A flaw was found in libwebp in versions before 1.0.1. A heap-based buffer overflow in function WebPDecodeRGBInto is possible due to an invalid check for buffer size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
    "evidence": "osv:CVE-2020-36328",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-36328",
      "aliases": [
        "CVE-2020-36328"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/webmproject/libwebp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e85d3313d6d52b1e9c6c181b488fc0831a747de8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.1.3",
            "v0.1.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36328.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:22.632969485Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2021/06/msg00005.html",
        "https://lists.debian.org/debian-lts-announce/2021/06/msg00006.html",
        "https://security.netapp.com/advisory/ntap-20211112-0001/",
        "https://support.apple.com/kb/HT212601",
        "https://www.debian.org/security/2021/dsa-4930",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1956829"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:apple:ipados:14.7:*:*:*:*:*:*:*"
            ],
            "vendor_product": "apple:ipados",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.7"
                  },
                  {
                    "last_affected": "14.7"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:apple:iphone_os:14.7:*:*:*:*:*:*:*"
            ],
            "vendor_product": "apple:iphone_os",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.7"
                  },
                  {
                    "last_affected": "14.7"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  },
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-36328",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430719,
  "published_at": "2021-05-21T17:15:08.27+00:00"
}