Security Bulletin
This security bulletin contains one medium risk vulnerability.
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
DescriptionThe 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.
Update the affected package openssl-3 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server 15 SP4 LTSS: 15-SP4
SUSE Linux Enterprise High Performance Computing LTSS 15: SP4
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4
SUSE Linux Enterprise Desktop 15 SP4 LTSS: 15-SP4
SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4
SUSE Linux Enterprise Micro: 5.3 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP4
SUSE Linux Enterprise Server 15: SP4
SUSE Linux Enterprise High Performance Computing 15: SP4
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
openSUSE Leap: 15.4
libopenssl3-64bit-debuginfo: before 3.0.8-150400.4.66.1
libopenssl-3-devel-64bit: before 3.0.8-150400.4.66.1
libopenssl3-64bit: before 3.0.8-150400.4.66.1
openssl-3-doc: before 3.0.8-150400.4.66.1
libopenssl3-32bit-debuginfo: before 3.0.8-150400.4.66.1
libopenssl-3-devel-32bit: before 3.0.8-150400.4.66.1
libopenssl3-32bit: before 3.0.8-150400.4.66.1
libopenssl3-debuginfo: before 3.0.8-150400.4.66.1
libopenssl3: before 3.0.8-150400.4.66.1
openssl-3-debuginfo: before 3.0.8-150400.4.66.1
libopenssl-3-devel: before 3.0.8-150400.4.66.1
openssl-3-debugsource: before 3.0.8-150400.4.66.1
openssl-3: before 3.0.8-150400.4.66.1
CPE2.3http://www.suse.com/support/update/announcement/2024/suse-su-20243525-1/
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.