VDB
CVE-2020-36846
CVE-2020-36846
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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.
EPSS 0.63% · 48.6th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.63%
48.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:25.10 | libio-compress-brotli-perl | 0, 0.004001-2build4 |
| Ubuntu:24.04:LTS | libio-compress-brotli-perl | 0, 0.004001-2, 0.004001-2build1 |
Timeline
- Sep 15, 2020 CVE Published
- May 30, 2025 EPSS Score
- Jun 11, 2025 EPSS Score
- Jun 22, 2025 EPSS Score
- Jul 4, 2025 EPSS Score
- Jul 15, 2025 EPSS Score
- Jul 27, 2025 EPSS Score
- Aug 8, 2025 EPSS Score
- Aug 19, 2025 EPSS Score
- Aug 31, 2025 EPSS Score
- Sep 11, 2025 EPSS Score
- Sep 23, 2025 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-36846 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-36846 third-party-advisory
- https://lists.security.metacpan.org/cve-announce/msg/30005245/ third-party-advisory
- https://github.com/google/brotli/pull/826 third-party-advisory
- https://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52 third-party-advisory
- https://github.com/advisories/GHSA-5v8v-66v8-mwm7 third-party-advisory
- https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6 third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-8927 third-party-advisory