SUSE update for openssl1

1) Resource exhaustion

EUVDB-ID: #VU73960

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-2023-0464

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 verifying X.509 certificate chains that include policy constraints. A remote attacker can create a specially crafted certificate to trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package openssl1 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE: 11-SP4

SUSE Linux Enterprise Server 11: SP4

libopenssl1_0_0: before 1.0.1g-0.58.59.1

libopenssl1-devel: before 1.0.1g-0.58.59.1

libopenssl1_0_0-32bit: before 1.0.1g-0.58.59.1

openssl1: before 1.0.1g-0.58.59.1

openssl1-doc: before 1.0.1g-0.58.59.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_11_sp4_ltss_extreme_core:11-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_11:SP4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libopenssl1_0_0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_0_0-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl1-doc:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231754-1/

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.