SUSE update for brotli

1) Buffer overflow

EUVDB-ID: #VU46905

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8927

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.

Mitigation

Update the affected package brotli to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

libbrotlienc1-debuginfo: before 1.0.7-3.3.1

libbrotlienc1: before 1.0.7-3.3.1

libbrotlidec1-debuginfo: before 1.0.7-3.3.1

libbrotlidec1: before 1.0.7-3.3.1

libbrotlicommon1-debuginfo: before 1.0.7-3.3.1

libbrotlicommon1: before 1.0.7-3.3.1

libbrotli-devel: before 1.0.7-3.3.1

brotli-debugsource: before 1.0.7-3.3.1

brotli-debuginfo: before 1.0.7-3.3.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213942-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.