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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.win:def:83102
[Rus]
Version
8
Class
vulnerability
ALTXid
385604
Language
English
Severity
Medium
Title
Brotli Library Buffer Overflow Vulnerability in Visual Studio 2019, 2022 (CVE-2020-8927)
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.
Family
windows
Platform
Microsoft Windows XP
Microsoft Windows Vista
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows 8.1
Microsoft Windows 10
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Product
Microsoft .NET
Microsoft .NET Core
Microsoft PowerShell Core
Microsoft Visual Studio 2019
Microsoft Visual Studio 2022
Reference
CVE: CVE-2020-8927
CVE: CVE-2020-8927
Id:
CVE-2020-8927
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8927
Comment
: 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 Score:
6.4
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
LOW
Availability impact:
LOW
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE:
120 (Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'))
References:
https://github.com/google/brotli/releases/tag/v1.0.9 (CONFIRM)
openSUSE-SU-2020:1578 (SUSE)
USN-4568-1 (UBUNTU)
[debian-lts-announce] 20201201 [SECURITY] [DLA 2476-1] brotli security update (MLIST)
DSA-4801 (DEBIAN)
FEDORA-2020-22d278923a ()
FEDORA-2020-c663fbc46c ()
FEDORA-2020-e21bd401ad ()
FEDORA-2020-bc9a739f0c ()
FEDORA-2020-9336b65f82 ()
FEDORA-2020-c76a35b209 ()
FEDORA-2022-9e046f579a ()
FEDORA-2022-5ecee47acb ()
FEDORA-2022-d28042f559 ()
Microsoft: CVE-2020-8927
Microsoft: CVE-2020-8927
Id:
CVE-2020-8927
Reference:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-8927
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