CVE-2020-8927
moderate-risk
Published 2020-09-15
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.
Do I need to act?
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0.31% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10
Medium
NETWORK
/ LOW complexity
Affected Products (19)
References (28)
Release Notes
https://github.com/google/brotli/releases/tag/v1.0.9
Third Party Advisory
https://usn.ubuntu.com/4568-1/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4801
Release Notes
https://github.com/google/brotli/releases/tag/v1.0.9
and 8 more references
41
/ 100
moderate-risk
Severity
21/34 · High
Exploitability
1/34 · Minimal
Exposure
19/34 · Moderate