CVE-2020-8927
brotli - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.31%
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.
How to fix CVE-2020-8927
To remediate CVE-2020-8927, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.9-r0 or later
- —upgrade to 1.0.9-1 or later
- —upgrade to 0.5.2+dfsg-2+deb9u1 or later
- —upgrade to 1.0.7-2+deb10u1 or later
Is CVE-2020-8927 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 1.0.9-r0
- from 0, < 1.0.9-1
- from 0, < 0.5.2+dfsg-2+deb9u1
- from 0, < 1.0.7-2+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |