CVE-2020-8927

Published: 15 September 2020

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.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
brotli
Launchpad, Ubuntu, Debian
Upstream
Released (1.0.9-1)
Ubuntu 20.10 (Groovy Gorilla)
Released (1.0.9-2)
Ubuntu 20.04 LTS (Focal Fossa)
Released (1.0.7-6ubuntu0.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.0.3-1ubuntu1.3)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (1.0.3-1ubuntu1~16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6