SUSE update for openssl-3

1) Resource exhaustion

EUVDB-ID: #VU98050

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-2024-41996

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 unnecessary validation of the public keys in the Diffie-Hellman Key Agreement Protocol when an approved safe prime is used. A remote attacker from the client side can trigger unnecessarily expensive server-side DHE modular-exponentiation calculations and cause asymmetric resource consumption, resulting in a denial of service (DoS) attack.

Mitigation

Update the affected package openssl-3 to the latest version.

Vulnerable software versions

Basesystem Module: 15-SP6

SUSE Linux Enterprise Real Time 15: SP6

openSUSE Leap: 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP6

SUSE Linux Enterprise Server 15: SP6

SUSE Linux Enterprise Desktop 15: SP6

libopenssl3-64bit: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider-64bit: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider-64bit-debuginfo: before 3.1.4-150600.5.18.1

libopenssl3-64bit-debuginfo: before 3.1.4-150600.5.18.1

libopenssl-3-devel-64bit: before 3.1.4-150600.5.18.1

openssl-3-doc: before 3.1.4-150600.5.18.1

libopenssl3-32bit: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider-32bit-debuginfo: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider-32bit: before 3.1.4-150600.5.18.1

libopenssl-3-devel-32bit: before 3.1.4-150600.5.18.1

libopenssl3-32bit-debuginfo: before 3.1.4-150600.5.18.1

libopenssl-3-devel: before 3.1.4-150600.5.18.1

openssl-3-debugsource: before 3.1.4-150600.5.18.1

libopenssl3: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider: before 3.1.4-150600.5.18.1

libopenssl3-debuginfo: before 3.1.4-150600.5.18.1

openssl-3-debuginfo: before 3.1.4-150600.5.18.1

libopenssl-3-fips-provider-debuginfo: before 3.1.4-150600.5.18.1

openssl-3: before 3.1.4-150600.5.18.1

CPE2.3

• cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20243501-1/

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.