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CVE-2020-8927

CVE information

Published

3 years ago

Last Modified

4 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Medium
Base Score
6.4/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
4.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
2.5/10
Confidentiality Impact
None
Availability Impact
Low
Integrity Impact
Low
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:google:brotli:*:*:*:*:*:*:*:*
  Yes
- 1.0.8
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  Yes
- -
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
  Yes
16.0 -
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
  Yes
5.0 -
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*
  Yes
3.1 -
cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*
  Yes
7.2 7.2.2
cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*
  Yes
7.0 7.0.9
cpe:2.3:a:microsoft:visual_studio_2022:17.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*
  Yes
7.1 7.1.6
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
  Yes
17.0 -