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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Lukas Bernhard as the original reporter.", "affected_release": [{"advisory": "RHSA-2023:4945", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:102.15.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:5019", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:102.15.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2023-09-07T00:00:00Z"}, {"advisory": "RHSA-2023:4952", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:102.15.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4954", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:102.15.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4948", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": 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Telecommunications Update Service", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4951", "cpe": "cpe:/a:redhat:rhel_tus:8.2", "package": "firefox-0:102.15.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4946", "cpe": "cpe:/a:redhat:rhel_e4s:8.2", "package": "thunderbird-0:102.15.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4951", "cpe": "cpe:/a:redhat:rhel_e4s:8.2", "package": "firefox-0:102.15.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4956", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "thunderbird-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4957", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "firefox-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4956", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "thunderbird-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4957", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "firefox-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4956", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "thunderbird-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4957", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "firefox-0:102.15.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4959", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "firefox-0:102.15.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4955", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "thunderbird-0:102.15.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4958", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "firefox-0:102.15.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4947", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "thunderbird-0:102.15.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-09-04T00:00:00Z"}, {"advisory": "RHSA-2023:4950", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "firefox-0:102.15.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-09-04T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Memory corruption in JIT UpdateRegExpStatics", "id": "2236075", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2236075"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.", "The Mozilla Foundation Security Advisory describes this flaw as:\nWhen `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash."], "name": "CVE-2023-4577", "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": "2023-08-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-4577\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-4577\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2023-36/#CVE-2023-4577"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Important"}

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