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SUSE: 2023:4649-1 critical: OpenSSL-3 DoS risk resolved

suse
Calendar Grey December 14, 2023
Dist Suse Esm H88
An important update for openssl-3 on SUSE addressing a denial-of-service flaw. Essential guidance for implementing the update is included.
* bsc#1194187 * bsc#1207472 * bsc#1216922 Cross-References:

Summary

## This update for openssl-3 fixes the following issues: * CVE-2023-5678: Fixed generating and checking of excessively long X9.42 DH keys that resulted in a possible Denial of Service (bsc#1216922). Bug fixes: * The default /etc/ssl/openssl3.cnf file will include any configuration files that other packages might place into /etc/ssl/engines3.d/ and /etc/ssl/engdef3.d/. * Create the two new necessary directores for the above. [bsc#1194187, bsc#1207472] ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * openSUSE Leap 15.4 zypper in -t patch openSUSE-SLE-15.4-2023-4649=1 SUSE-2023-4649=1 * SUSE Linux Enterprise Micro for Rancher 5.3

Topics%20covered

Topics Covered

security advisory denial of service security fix critical update suse linux openssl patch

References

* bsc#1194187

* bsc#1207472

* bsc#1216922

Cross-

* CVE-2023-5678

CVSS scores:

* CVE-2023-5678 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2023-5678 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products:

* Basesystem Module 15-SP4

* openSUSE Leap 15.4

* openSUSE Leap Micro 5.3

* openSUSE Leap Micro 5.4

* SUSE Linux Enterprise Desktop 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Micro for Rancher 5.3

* SUSE Linux Enterprise Micro for Rancher 5.4

* SUSE Linux Enterprise Real Time 15 SP4

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

* SUSE Manager Proxy 4.3

* SUSE Manager Retail Branch Server 4.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4649-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service security fix critical update suse linux openssl patch

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