SUSE update for openssl-1_0_0

1) Infinite loop

EUVDB-ID: #VU61391

Risk: Medium

CVSSv4.0: 7.7 [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:P/U:Green]

CVE-ID: CVE-2022-0778

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: Yes

Description

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

The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.

Mitigation

Update the affected package openssl-1_0_0 to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP5

SUSE OpenStack Cloud: 9

libopenssl-1_0_0-devel-32bit: before 1.0.2p-3.48.1

openssl-1_0_0-doc: before 1.0.2p-3.48.1

openssl-1_0_0-debugsource: before 1.0.2p-3.48.1

openssl-1_0_0-debuginfo: before 1.0.2p-3.48.1

openssl-1_0_0: before 1.0.2p-3.48.1

libopenssl1_0_0-hmac-32bit: before 1.0.2p-3.48.1

libopenssl1_0_0-hmac: before 1.0.2p-3.48.1

libopenssl1_0_0-debuginfo-32bit: before 1.0.2p-3.48.1

libopenssl1_0_0-debuginfo: before 1.0.2p-3.48.1

libopenssl1_0_0-32bit: before 1.0.2p-3.48.1

libopenssl1_0_0: before 1.0.2p-3.48.1

libopenssl-1_0_0-devel: before 1.0.2p-3.48.1

CPE2.3

• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP4-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libopenssl-1_0_0-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_0_0-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_0_0-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_0_0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_0_0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-hmac-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-hmac:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl-1_0_0-devel:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220857-1/

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. However, proof of concept for this vulnerability is available.