fkie_cve-2023-1999
Vulnerability from fkie_nvd
Published
2023-06-20 12:15
Modified
2025-02-13 17:16
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.
References
cve-coordination@google.comhttps://chromium.googlesource.com/webm/libwebpProduct
cve-coordination@google.comhttps://security.gentoo.org/glsa/202309-05
af854a3a-2127-422b-91ae-364da2661108https://chromium.googlesource.com/webm/libwebpProduct
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202309-05
Impacted products
Vendor Product Version
webmproject libwebp *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "17956DAA-EA1F-40A8-8B19-EFBFDBC36DCA",
                     versionEndExcluding: "1.3.1",
                     versionStartIncluding: "0.4.2",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.",
      },
      {
         lang: "es",
         value: "Existe un Use After Free/Double Free en libwebp. Un atacante puede usar la función ApplyFiltersAndEncode() y hacer un bucle para liberar best.bw y asignar best = puntero trial. El segundo bucle devolverá 0 debido a un error de memoria insuficiente en el codificador VP8, el puntero sigue asignado a trial y el AddressSanitizer intentará un doble free.",
      },
   ],
   id: "CVE-2023-1999",
   lastModified: "2025-02-13T17:16:01.293",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 5.3,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "HIGH",
               integrityImpact: "NONE",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
               version: "3.1",
            },
            exploitabilityScore: 1.6,
            impactScore: 3.6,
            source: "cve-coordination@google.com",
            type: "Secondary",
         },
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 7.5,
               baseSeverity: "HIGH",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2023-06-20T12:15:09.600",
   references: [
      {
         source: "cve-coordination@google.com",
         tags: [
            "Product",
         ],
         url: "https://chromium.googlesource.com/webm/libwebp",
      },
      {
         source: "cve-coordination@google.com",
         url: "https://security.gentoo.org/glsa/202309-05",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Product",
         ],
         url: "https://chromium.googlesource.com/webm/libwebp",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://security.gentoo.org/glsa/202309-05",
      },
   ],
   sourceIdentifier: "cve-coordination@google.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "cve-coordination@google.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-415",
            },
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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