SUSE update for nghttp2

1) Resource exhaustion

EUVDB-ID: #VU28538

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-11080

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when processing HTTP/2 SETTINGS frames. A remote attacker can trigger high CPU load by sending large HTTP/2 SETTINGS frames and perform a denial of service (DoS) attack.

Mitigation

Update the affected package nghttp2 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP3

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise High Performance Computing: 15-LTSS - 15-SP1-ESPOS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

libnghttp2-14-32bit-debuginfo: before 1.40.0-3.11.1

libnghttp2-14-32bit: before 1.40.0-3.11.1

nghttp2-debugsource: before 1.40.0-3.11.1

nghttp2-debuginfo: before 1.40.0-3.11.1

libnghttp2_asio1-debuginfo: before 1.40.0-3.11.1

libnghttp2_asio1: before 1.40.0-3.11.1

libnghttp2_asio-devel: before 1.40.0-3.11.1

libnghttp2-devel: before 1.40.0-3.11.1

libnghttp2-14-debuginfo: before 1.40.0-3.11.1

libnghttp2-14: before 1.40.0-3.11.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-ESPOS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libnghttp2-14-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-14-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nghttp2-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nghttp2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2_asio1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2_asio1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2_asio-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-14-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-14:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20210931-1/

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.