{"containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"status": "affected", "version": "< 82.0.3"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"status": "affected", "version": "< 78.4.1"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"status": "affected", "version": "< 78.4.2"}]}], "descriptions": [{"lang": "en", "value": "In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2."}], "problemTypes": [{"descriptions": [{"description": "Write side effects in MCallGetProperty opcode not accounted for", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-03-01T17:06:11", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1675905"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-49/"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@mozilla.org", "ID": "CVE-2020-26950", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Firefox", "version": {"version_data": [{"version_value": "< 82.0.3"}]}}, {"product_name": "Firefox ESR", "version": {"version_data": [{"version_value": "< 78.4.1"}]}}, {"product_name": "Thunderbird", "version": {"version_data": [{"version_value": "< 78.4.2"}]}}]}, "vendor_name": "Mozilla"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Write side effects in MCallGetProperty opcode not accounted for"}]}]}, "references": {"reference_data": [{"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1675905", "refsource": "MISC", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1675905"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2020-49/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2020-49/"}, {"name": "http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html"}]}}}}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2020-26950", "datePublished": "2020-12-09T00:19:22", "dateReserved": "2020-10-12T00:00:00", "dateUpdated": "2022-03-01T17:06:11", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

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