{"id":"UBUNTU-CVE-2020-36846","details":"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.","modified":"2026-05-20T16:06:24.545054730Z","published":"2025-05-30T01:15:00Z","upstream":["CVE-2020-36846"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36846"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-36846"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/30005245/"},{"type":"REPORT","url":"https://github.com/google/brotli/pull/826"},{"type":"REPORT","url":"https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52"},{"type":"REPORT","url":"https://github.com/advisories/GHSA-5v8v-66v8-mwm7"},{"type":"REPORT","url":"https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6"},{"type":"REPORT","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8927"}],"affected":[{"package":{"name":"libio-compress-brotli-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libio-compress-brotli-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.004001-2","0.004001-2build1","0.004001-2build2","0.004001-2build3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.004001-2build3","binary_name":"libio-compress-brotli-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36846.json"}},{"package":{"name":"libio-compress-brotli-perl","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libio-compress-brotli-perl?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.004001-2build4"],"ecosystem_specific":{"binaries":[{"binary_version":"0.004001-2build4","binary_name":"libio-compress-brotli-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36846.json"}},{"package":{"name":"libio-compress-brotli-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libio-compress-brotli-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.004001-2build4","0.019000-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libio-compress-brotli-perl","binary_version":"0.019000-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36846.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}