Vulnerability-Lookup

alsa-2025:8060

Vulnerability from osv_almalinux

Published

2025-05-21 00:00

Modified

2025-05-21 07:19

Summary

Important: firefox security update

Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

firefox: Out-of-bounds access when resolving Promise objects (CVE-2025-4918)
firefox: Out-of-bounds access when optimizing linear sums (CVE-2025-4919)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2025:8060	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-4918	REPORT
	https://access.redhat.com/security/cve/CVE-2025-4919	REPORT
	https://bugzilla.redhat.com/2367016	REPORT
	https://bugzilla.redhat.com/2367018	REPORT
	https://errata.almalinux.org/8/ALSA-2025-8060.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "firefox"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "128.10.1-1.el8_10.alma.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.  \n\nSecurity Fix(es):  \n\n  * firefox: Out-of-bounds access when resolving Promise objects (CVE-2025-4918)\n  * firefox: Out-of-bounds access when optimizing linear sums (CVE-2025-4919)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2025:8060",
  "modified": "2025-05-21T07:19:42Z",
  "published": "2025-05-21T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2025:8060"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-4918"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-4919"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2367016"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2367018"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2025-8060.html"
    }
  ],
  "related": [
    "CVE-2025-4918",
    "CVE-2025-4919"
  ],
  "summary": "Important: firefox security update"
}

CVE-2025-4919 (GCVE-0-2025-4919)

Vulnerability from cvelistv5 – Published: 2025-05-17 21:07 – Updated: 2026-02-26 18:28

Summary

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, Firefox ESR < 115.23.1, Thunderbird < 128.10.2, and Thunderbird < 138.0.2.

Severity ?

8.8 (High)


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

CWE

Out-of-bounds access when optimizing linear sums

Assigner

mozilla

References

URL

Tags

	https://bugzilla.mozilla.org/show_bug.cgi?id=1966614
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

Vendor

Product

Version

Mozilla

Firefox

Affected: unspecified , < 138.0.4 (custom)

Mozilla	Firefox ESR	Affected: unspecified , < 128.10.1 (custom)
Mozilla	Firefox ESR	Affected: unspecified , < 115.23.1 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 128.10.2 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 138.0.2 (custom)

Credits

Manfred Paul working with Trend Micro's Zero Day Initiative

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-4919",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-20T03:55:18.550351Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-125",
                "description": "CWE-125 Out-of-bounds Read",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T18:28:06.157Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:05:22.225Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "138.0.4",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.10.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "115.23.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.10.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "138.0.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Manfred Paul working with Trend Micro\u0027s Zero Day Initiative"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability affects Firefox \u003c 138.0.4, Firefox ESR \u003c 128.10.1, Firefox ESR \u003c 115.23.1, Thunderbird \u003c 128.10.2, and Thunderbird \u003c 138.0.2."
            }
          ],
          "value": "An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability affects Firefox \u003c 138.0.4, Firefox ESR \u003c 128.10.1, Firefox ESR \u003c 115.23.1, Thunderbird \u003c 128.10.2, and Thunderbird \u003c 138.0.2."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Out-of-bounds access when optimizing linear sums",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-22T13:05:18.619Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1966614"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-36/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-37/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-38/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-40/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-41/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2025-4919",
    "datePublished": "2025-05-17T21:07:27.734Z",
    "dateReserved": "2025-05-17T19:40:53.416Z",
    "dateUpdated": "2026-02-26T18:28:06.157Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2025-4918 (GCVE-0-2025-4918)

Vulnerability from cvelistv5 – Published: 2025-05-17 21:07 – Updated: 2026-02-26 18:28

Summary

An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, Firefox ESR < 115.23.1, Thunderbird < 128.10.2, and Thunderbird < 138.0.2.

Severity ?

9.8 (Critical)


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

CWE

Out-of-bounds access when resolving Promise objects

Assigner

mozilla

References

URL

Tags

	https://bugzilla.mozilla.org/show_bug.cgi?id=1966612
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…
	https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

Vendor

Product

Version

Mozilla

Firefox

Affected: unspecified , < 138.0.4 (custom)

Mozilla	Firefox ESR	Affected: unspecified , < 128.10.1 (custom)
Mozilla	Firefox ESR	Affected: unspecified , < 115.23.1 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 128.10.2 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 138.0.2 (custom)

Credits

Edouard Bochin and Tao Yan from Palo Alto Networks working with Trend Micro's Zero Day Initiative

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-4918",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-20T03:55:17.219008Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-125",
                "description": "CWE-125 Out-of-bounds Read",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T18:28:06.529Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:05:17.591Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.vicarius.io/vsociety/posts/cve-2025-4918-detect-firefox-out-of-bounds-write"
          },
          {
            "url": "https://www.vicarius.io/vsociety/posts/cve-2025-4918-mitigate-firefox-out-of-bounds-write"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00024.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "138.0.4",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.10.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "115.23.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "128.10.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "138.0.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Edouard Bochin and Tao Yan from Palo Alto Networks working with Trend Micro\u0027s Zero Day Initiative"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox \u003c 138.0.4, Firefox ESR \u003c 128.10.1, Firefox ESR \u003c 115.23.1, Thunderbird \u003c 128.10.2, and Thunderbird \u003c 138.0.2."
            }
          ],
          "value": "An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox \u003c 138.0.4, Firefox ESR \u003c 128.10.1, Firefox ESR \u003c 115.23.1, Thunderbird \u003c 128.10.2, and Thunderbird \u003c 138.0.2."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Out-of-bounds access when resolving Promise objects",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-22T13:05:17.184Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1966612"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-36/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-37/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-38/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-40/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2025-41/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2025-4918",
    "datePublished": "2025-05-17T21:07:26.745Z",
    "dateReserved": "2025-05-17T19:40:51.300Z",
    "dateUpdated": "2026-02-26T18:28:06.529Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

alsa-2025:8060

Vulnerability from osv_almalinux

CVE-2025-4919 (GCVE-0-2025-4919)

CVE-2025-4918 (GCVE-0-2025-4918)

Tags

Sightings

Nomenclature