Description
A buffer overflow exists in the Brotli library versions prior to 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 Brotli library to 1.0.8 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.
Published: 2020-09-15
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2476-1 brotli security update
Debian DSA Debian DSA DSA-4801-1 brotli security update
EUVD EUVD EUVD-2020-0057 A buffer overflow exists in the Brotli library versions prior to 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 Brotli library to 1.0.8 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.
Github GHSA Github GHSA GHSA-5v8v-66v8-mwm7 Integer overflow in the bundled Brotli C library
Ubuntu USN Ubuntu USN USN-4568-1 Brotli vulnerability
References
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.html cve-icon cve-icon
https://github.com/google/brotli/releases/tag/v1.0.9 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2020/12/msg00003.html cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEH/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JF/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4E265WKWKYMK2RYYSIXBEGZTDY5IQE6/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4VCDOJGL6BK3HB4XRD2WETBPYX2ITF6/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMBKACMLSRX7JJSKBTR35UOEP2WFR6QP/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQLM7ABVCYJLF6JRPF3M3EBXW63GNC27/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W23CUADGMVMQQNFKHPHXVP7RPZJZNN6I/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WW62OZEY2GHJL4JCOLJRBSRETXDHMWRK/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXEQ3GQVELA2T4HNZG7VPMS2HDVXMJRG/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-8927 cve-icon
https://usn.ubuntu.com/4568-1/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-8927 cve-icon
https://www.debian.org/security/2020/dsa-4801 cve-icon cve-icon
History

Fri, 29 May 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Fedoraproject Fedora
Google Brotli
Microsoft .net .net Core Powershell Visual Studio 2019 Visual Studio 2022
Opensuse Leap
Redhat Enterprise Linux Rhel Dotnet
cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2026-05-29T20:52:34.416Z

Reserved: 2020-02-12T00:00:00.000Z

Link: CVE-2020-8927

cve-icon Vulnrichment

Updated: 2024-08-04T10:12:11.066Z

cve-icon NVD

Status : Modified

Published: 2020-09-15T10:15:12.887

Modified: 2024-11-21T05:39:41.370

Link: CVE-2020-8927

cve-icon Redhat

Severity : Important

Publid Date: 2020-08-27T00:00:00Z

Links: CVE-2020-8927 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses