CVE-2020-36846

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2020-36846", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2025-05-28T01:44:05.054Z", "datePublished": "2025-05-30T00:50:28.582Z", "dateUpdated": "2025-05-30T22:01:41.998Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "IO-Compress-Brotli", "product": "IO::Compress::Brotli", "programFiles": ["brotli/c/dec/bit_reader.h"], "repo": "https://github.com/timlegge/perl-IO-Compress-Brotli", "vendor": "TIMLEGGE", "versions": [{"lessThan": "0.007", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Robert Rothenberg (RRWO)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits."}], "value": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.\u00a0 Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007\u00a0or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1395", "description": "CWE-1395 Dependency on Vulnerable Third-Party Component", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2025-05-30T00:50:28.582Z"}, "references": [{"tags": ["issue-tracking"], "url": "https://github.com/google/brotli/pull/826"}, {"tags": ["third-party-advisory"], "url": "https://github.com/advisories/GHSA-5v8v-66v8-mwm7"}, {"tags": ["mitigation"], "url": "https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52"}, {"tags": ["vdb-entry"], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8927"}, {"tags": ["patch"], "url": "https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6"}], "source": {"discovery": "UNKNOWN"}, "title": "IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-05-30T14:40:47.592851Z", "id": "CVE-2020-36846", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2025-05-30T22:01:41.998Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2020-36846", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-05-30T14:40:47.592851Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-30T14:40:50.444Z"}}], "cna": {"title": "IO::Compress::Brotli versions prior to 0.007 for Perl have an integer overflow in the bundled Brotli C library", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "reporter", "value": "Robert Rothenberg (RRWO)"}], "affected": [{"repo": "https://github.com/timlegge/perl-IO-Compress-Brotli", "vendor": "TIMLEGGE", "product": "IO::Compress::Brotli", "versions": [{"status": "affected", "version": "0", "lessThan": "0.007", "versionType": "custom"}], "packageName": "IO-Compress-Brotli", "programFiles": ["brotli/c/dec/bit_reader.h"], "collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/google/brotli/pull/826", "tags": ["issue-tracking"]}, {"url": "https://github.com/advisories/GHSA-5v8v-66v8-mwm7", "tags": ["third-party-advisory"]}, {"url": "https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52", "tags": ["mitigation"]}, {"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8927", "tags": ["vdb-entry"]}, {"url": "https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6", "tags": ["patch"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.\u00a0 Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007\u00a0or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.", "supportingMedia": [{"type": "text/html", "value": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.  Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1395", "description": "CWE-1395 Dependency on Vulnerable Third-Party Component"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2025-05-30T00:50:28.582Z"}}}, "cveMetadata": {"cveId": "CVE-2020-36846", "state": "PUBLISHED", "dateUpdated": "2025-05-30T22:01:41.998Z", "dateReserved": "2025-05-28T01:44:05.054Z", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "datePublished": "2025-05-30T00:50:28.582Z", "assignerShortName": "CPANSec"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "IO-Compress-Brotli", "product": "IO::Compress::Brotli", "programFiles": ["brotli/c/dec/bit_reader.h"], "repo": "https://github.com/timlegge/perl-IO-Compress-Brotli", "vendor": "TIMLEGGE", "versions": [{"lessThan": "0.007", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library.\u00a0 Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007\u00a0or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits."}, {"lang": "es", "value": "Existe un desbordamiento de b\u00fafer, como se describe en CVE-2020-8927, en la librer\u00eda Brotli integrada. Las versiones de IO::Compress::Brotli anteriores a la 0.007 inclu\u00edan una versi\u00f3n de la librer\u00eda Brotli anterior a la 1.0.8, donde un atacante que controle la longitud de entrada de una solicitud de descompresi\u00f3n \u00fanica a un script puede provocar un fallo, lo cual ocurre al copiar fragmentos de datos de m\u00e1s de 2 GiB. Se recomienda actualizar el m\u00f3dulo IO::Compress::Brotli a la versi\u00f3n 0.007 o posterior. Si no se puede actualizar, recomendamos usar la API de streaming en lugar de la API \u00fanica e imponer l\u00edmites de tama\u00f1o de fragmentos."}], "id": "CVE-2020-36846", "lastModified": "2026-06-17T03:16:19.050", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2020-36846", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-05-30T14:40:47.592851Z", "version": "2.0.3"}}]}, "published": "2025-05-30T01:15:20.950", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/advisories/GHSA-5v8v-66v8-mwm7"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/google/brotli/pull/826"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8927"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Deferred"}

{}

{"created": "2025-07-13T21:06:46.256903+00:00", "updated": "2025-07-13T21:06:46.256950+00:00", "vendors": ["google", "google$PRODUCT$brotli"]}