CVE-2020-8927

MEDIUM

Brotli < 1.0.8 - Denial of Service via One-Shot Decompression Buffer Overflow

Title source: llm
STIX 2.1

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.

References (14)

Core 14
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4568-1/
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/google/brotli/releases/tag/v1.0.9
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/12/msg00003.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4801

Scores

CVSS v3 5.3
EPSS 0.0324
EPSS Percentile 86.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-130 CWE-120
Status published
Products (50)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
crates.io/compu-brotli-sys 0 - 1.0.9crates.io
debian/debian_linux 9.0
debian/debian_linux 10.0
fedoraproject/fedora 31
fedoraproject/fedora 32
fedoraproject/fedora 33
fedoraproject/fedora 34
... and 40 more
Published Sep 15, 2020
Tracked Since Feb 18, 2026