CVE-2023-6862

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-6862", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2023-12-15T17:42:56.130Z", "datePublished": "2023-12-19T13:38:43.100Z", "dateUpdated": "2025-02-13T17:26:37.198Z"}, "containers": {"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"}]}], "descriptions": [{"lang": "en", "value": "A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A use-after-free was identified in the <code>nsDNSService::Init</code>. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6."}]}], "problemTypes": [{"descriptions": [{"description": "Use-after-free in nsDNSService", "lang": "en", "type": "text"}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/"}, {"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"}], "credits": [{"lang": "en", "value": "Randell Jesup"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2024-01-07T11:07:08.929Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:42:08.103Z"}, "title": "CVE Program Container", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042", "tags": ["x_transferred"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/", "tags": ["x_transferred"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5581", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5582", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html", "tags": ["x_transferred"]}, {"url": "https://security.gentoo.org/glsa/202401-10", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-01-12T20:20:08.739941Z", "id": "CVE-2023-6862", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-25T19:18:21.412Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042", "tags": ["x_transferred"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/", "tags": ["x_transferred"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5581", "tags": ["x_transferred"]}, {"url": "https://www.debian.org/security/2023/dsa-5582", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html", "tags": ["x_transferred"]}, {"url": "https://security.gentoo.org/glsa/202401-10", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:42:08.103Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6862", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-01-12T20:20:08.739941Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-25T19:18:16.861Z"}}], "cna": {"credits": [{"lang": "en", "value": "Randell Jesup"}], "affected": [{"vendor": "Mozilla", "product": "Firefox ESR", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "115.6", "versionType": "custom"}]}, {"vendor": "Mozilla", "product": "Thunderbird", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "115.6", "versionType": "custom"}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/"}, {"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"}], "descriptions": [{"lang": "en", "value": "A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.", "supportingMedia": [{"type": "text/html", "value": "A use-after-free was identified in the <code>nsDNSService::Init</code>. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "Use-after-free in nsDNSService"}]}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2024-01-07T11:07:08.929Z"}}}, "cveMetadata": {"cveId": "CVE-2023-6862", "state": "PUBLISHED", "dateUpdated": "2025-02-13T17:26:37.198Z", "dateReserved": "2023-12-15T17:42:56.130Z", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "datePublished": "2023-12-19T13:38:43.100Z", "assignerShortName": "mozilla"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"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"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "matchCriteriaId": "46B36C5E-77B7-4FBF-8B7A-6F794C8B8B2B", "versionEndExcluding": "115.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "1856451B-B03F-4BF2-AEFE-BF66D82D9E78", "versionEndExcluding": "115.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*", "matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6."}, {"lang": "es", "value": "Se identific\u00f3 un use after free en `nsDNSService::Init`. Este problema parece manifestarse raramente durante el inicio. Esta vulnerabilidad afecta a Firefox ESR &lt;115.6 y Thunderbird &lt;115.6."}], "id": "CVE-2023-6862", "lastModified": "2026-06-17T06:51:34.120", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-6862", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-01-12T20:20:08.739941Z", "version": "2.0.3"}}]}, "published": "2023-12-19T14:15:07.603", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042"}, {"source": "security@mozilla.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html"}, {"source": "security@mozilla.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202401-10"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2023/dsa-5581"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2023/dsa-5582"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-54/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-55/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202401-10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2023/dsa-5581"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2023/dsa-5582"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-54/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2023-55/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Randell Jesup as the original reporter.", "affected_release": [{"advisory": "RHSA-2024:0026", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:115.6.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0027", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:115.6.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0003", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:115.6.0-1.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0012", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:115.6.0-1.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0023", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "firefox-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0030", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "thunderbird-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0023", "cpe": "cpe:/a:redhat:rhel_tus:8.2", "package": "firefox-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0030", "cpe": "cpe:/a:redhat:rhel_tus:8.2", "package": "thunderbird-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0023", "cpe": "cpe:/a:redhat:rhel_e4s:8.2", "package": "firefox-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0030", "cpe": "cpe:/a:redhat:rhel_e4s:8.2", "package": "thunderbird-0:115.6.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0021", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "firefox-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0028", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "thunderbird-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0021", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "firefox-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0028", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "thunderbird-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0021", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "firefox-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0028", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "thunderbird-0:115.6.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0005", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "thunderbird-0:115.6.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0024", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "firefox-0:115.6.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0004", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "thunderbird-0:115.6.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0011", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "firefox-0:115.6.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0001", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "thunderbird-0:115.6.0-1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0025", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "firefox-0:115.6.0-1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0002", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "thunderbird-0:115.6.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0022", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "firefox-0:115.6.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0019", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "firefox-0:115.6.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0029", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "thunderbird-0:115.6.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free in <code>nsDNSService</code>", "id": "2255368", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255368"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. This vulnerability affects Firefox ESR < 115.6 and Thunderbird < 115.6.", "The Mozilla Foundation Security Advisory describes this flaw as:\nA use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up."], "name": "CVE-2023-6862", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2023-12-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-6862\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-6862\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2023-54/#CVE-2023-6862\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2023-55/#CVE-2023-6862"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Moderate"}

{}