CVE-2023-6862

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1868042	Issue Tracking Permissions Required
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202401-10	Third Party Advisory
https://www.debian.org/security/2023/dsa-5581	Third Party Advisory
https://www.debian.org/security/2023/dsa-5582	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-54/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-55/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1868042	Issue Tracking Permissions Required
https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202401-10	Third Party Advisory
https://www.debian.org/security/2023/dsa-5581	Third Party Advisory
https://www.debian.org/security/2023/dsa-5582	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2023-54/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-55/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*
	cpe:2.3:o:debian:debian_linux:12.0:::::::*

History

No history.

Information

Published : 2023-12-19 14:15

Updated : 2024-11-21 08:44

NVD link : CVE-2023-6862

Mitre link : CVE-2023-6862

CVE.ORG link : CVE-2023-6862

JSON object : View

Products Affected

debian

debian_linux

mozilla

thunderbird
firefox_esr

CWE

CWE-416

Use After Free

{"id": "CVE-2023-6862", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2023-12-19T14:15:07.603", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042", "tags": ["Issue Tracking", "Permissions Required"], "source": "security@mozilla.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://security.gentoo.org/glsa/202401-10", "tags": ["Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.debian.org/security/2023/dsa-5581", "tags": ["Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.debian.org/security/2023/dsa-5582", "tags": ["Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1868042", "tags": ["Issue Tracking", "Permissions Required"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/202401-10", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2023/dsa-5581", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.debian.org/security/2023/dsa-5582", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-54/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2023-55/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "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 <115.6 y Thunderbird <115.6."}], "lastModified": "2024-11-21T08:44:42.603", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46B36C5E-77B7-4FBF-8B7A-6F794C8B8B2B", "versionEndExcluding": "115.6"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1856451B-B03F-4BF2-AEFE-BF66D82D9E78", "versionEndExcluding": "115.6"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}, {"criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}