SUSE update for nghttp2

1) Memory leak

EUVDB-ID: #VU78293

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-2023-35945

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when handling HTTP/2 requests within the nghttp2 codec. A remote attacker can send RST_STREAM immediately followed by the GOAWAY frames to the application and force memory leak.

Mitigation

Update the affected package nghttp2 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Server 15: SP1

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

SUSE Linux Enterprise High Performance Computing 15: SP1

SUSE CaaS Platform: 4.0

libnghttp2-14-32bit-debuginfo: before 1.40.0-150000.3.14.1

libnghttp2-14-32bit: before 1.40.0-150000.3.14.1

libnghttp2_asio1: before 1.40.0-150000.3.14.1

nghttp2-debuginfo: before 1.40.0-150000.3.14.1

nghttp2-debugsource: before 1.40.0-150000.3.14.1

libnghttp2_asio-devel: before 1.40.0-150000.3.14.1

libnghttp2-devel: before 1.40.0-150000.3.14.1

libnghttp2_asio1-debuginfo: before 1.40.0-150000.3.14.1

libnghttp2-14: before 1.40.0-150000.3.14.1

libnghttp2-14-debuginfo: before 1.40.0-150000.3.14.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15_sp1_ltss:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• 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:libnghttp2_asio1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nghttp2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:nghttp2-debugsource:*:*:*:*:*: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_asio1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-14:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libnghttp2-14-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234102-1/

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.