CVE-2020-8927
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Google Brotli
PublishedSep 15, 2020
First seenSep 15, 2020
Weakness typeCWE-130CWE-130
How to fix
Update
- google brotli1.0.8 or later
- microsoft powershell7.0.9, 7.1.6, 7.2.2 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMBKACMLSRX7JJSKBTR35UOEP2WFR6QP/
- usn.ubuntu.com/4568-1/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WW62OZEY2GHJL4JCOLJRBSRETXDHMWRK/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4E265WKWKYMK2RYYSIXBEGZTDY5IQE6/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4VCDOJGL6BK3HB4XRD2WETBPYX2ITF6/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W23CUADGMVMQQNFKHPHXVP7RPZJZNN6I/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEH/
- debian.org/security/2020/dsa-4801
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXEQ3GQVELA2T4HNZG7VPMS2HDVXMJRG/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQLM7ABVCYJLF6JRPF3M3EBXW63GNC27/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JF/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google brotli | v < 1.0.8 | 1.0.8 |
| debian debian_linux | 9.0, 10.0 | — |
| fedoraproject fedora | 31, 32, 33, 34, 35, 36 | — |
| canonical ubuntu_linux | 16.04, 18.04, 20.04 | — |
| opensuse leap | 15.2 | — |
| microsoft .net | 5.0 ≤ v ≤ 5.0.14 | — |
| microsoft .net_core | 3.1 ≤ v ≤ 3.1.22 | — |
| microsoft powershell | 7.0 ≤ v < 7.0.9, 7.1 ≤ v < 7.1.6, 7.2 ≤ v < 7.2.2 | 7.0.9, 7.1.6, 7.2.2 |
| microsoft visual_studio_2019 | 16.0 ≤ v ≤ 16.11 | — |
| microsoft visual_studio_2022 | 17.0 ≤ v ≤ 17.0.7, 17.1 | — |
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