CVE-2023-6858 (GCVE-0-2023-6858)

Vulnerability from cvelistv5 – Published: 2023-12-19 13:38 – Updated: 2025-05-07 20:25
VLAI
Summary
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-07 20:24 UTC
CWE
  • Heap buffer overflow in nsTextFragment
  • CWE-787 - Out-of-bounds Write
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 546 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox ESR Affected: unspecified , < 115.6 (custom)
guessed Create a notification for this product.
Mozilla Thunderbird Affected: unspecified , < 115.6 (custom)
guessed Create a notification for this product.
Mozilla Firefox Affected: unspecified , < 121 (custom)
guessed Create a notification for this product.
Credits
Irvan Kurniawan
Show details on NVD website
To clipboard 

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                "descriptions": [
                  {
                    "cweId": "CWE-787",
                    "description": "CWE-787 Out-of-bounds Write",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-05-07T20:25:15.956Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "Firefox ESR",
              "vendor": "Mozilla",
              "versions": [
                {
                  "lessThan": "115.6",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            },
            {
              "product": "Thunderbird",
              "vendor": "Mozilla",
              "versions": [
                {
                  "lessThan": "115.6",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            },
            {
              "product": "Firefox",
              "vendor": "Mozilla",
              "versions": [
                {
                  "lessThan": "121",
                  "status": "affected",
                  "version": "unspecified",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "value": "Irvan Kurniawan"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Firefox was susceptible to a heap buffer overflow in \u003ccode\u003ensTextFragment\u003c/code\u003e due to insufficient OOM handling. This vulnerability affects Firefox ESR \u003c 115.6, Thunderbird \u003c 115.6, and Firefox \u003c 121."
                }
              ],
              "value": "Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR \u003c 115.6, Thunderbird \u003c 115.6, and Firefox \u003c 121."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "Heap buffer overflow in nsTextFragment",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-01-07T11:06:32.345Z",
            "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
            "shortName": "mozilla"
          },
          "references": [
            {
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1826791"
            },
            {
              "url": "https://www.mozilla.org/security/advisories/mfsa2023-54/"
            },
            {
              "url": "https://www.mozilla.org/security/advisories/mfsa2023-55/"
            },
            {
              "url": "https://www.mozilla.org/security/advisories/mfsa2023-56/"
            },
            {
              "url": "https://www.debian.org/security/2023/dsa-5581"
            },
            {
              "url": "https://www.debian.org/security/2023/dsa-5582"
            },
            {
              "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html"
            },
            {
              "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html"
            },
            {
              "url": "https://security.gentoo.org/glsa/202401-10"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "assignerShortName": "mozilla",
        "cveId": "CVE-2023-6858",
        "datePublished": "2023-12-19T13:38:38.757Z",
        "dateReserved": "2023-12-15T17:42:55.349Z",
        "dateUpdated": "2025-05-07T20:25:21.051Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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