{"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.  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."}],"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"}}]}}