Security update for openssl-3 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2024:2020-1 Final 1 1 2024-06-13T10:41:57Z current 2024-06-13T10:41:57Z 2024-06-13T10:41:57Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openssl-3 This update for openssl-3 fixes the following issues: - CVE-2024-4741: Fixed a use-after-free with SSL_free_buffers. (bsc#1225551) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container suse/ltss/sle15.5/sle15:latest-2024-2020,SUSE-2024-2020,SUSE-SLE-Module-Basesystem-15-SP5-2024-2020,openSUSE-SLE-15.5-2024-2020 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2024/suse-su-20242020-1/ Link for SUSE-SU-2024:2020-1 https://lists.suse.com/pipermail/sle-security-updates/2024-June/018712.html E-Mail link for SUSE-SU-2024:2020-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1225551 SUSE Bug 1225551 https://www.suse.com/security/cve/CVE-2024-4741/ SUSE CVE CVE-2024-4741 page Container suse/ltss/sle15.5/sle15:latest SUSE Linux Enterprise Module for Basesystem 15 SP5 openSUSE Leap 15.5 libopenssl3-3.0.8-150500.5.36.1 openssl-3-3.0.8-150500.5.36.1 libopenssl-3-devel-3.0.8-150500.5.36.1 libopenssl-3-devel-32bit-3.0.8-150500.5.36.1 libopenssl-3-devel-64bit-3.0.8-150500.5.36.1 libopenssl3-32bit-3.0.8-150500.5.36.1 libopenssl3-64bit-3.0.8-150500.5.36.1 openssl-3-doc-3.0.8-150500.5.36.1 libopenssl3-3.0.8-150500.5.36.1 as a component of Container suse/ltss/sle15.5/sle15:latest openssl-3-3.0.8-150500.5.36.1 as a component of Container suse/ltss/sle15.5/sle15:latest libopenssl-3-devel-3.0.8-150500.5.36.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 libopenssl3-3.0.8-150500.5.36.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 openssl-3-3.0.8-150500.5.36.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 libopenssl-3-devel-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 libopenssl-3-devel-32bit-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 libopenssl3-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 libopenssl3-32bit-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 openssl-3-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 openssl-3-doc-3.0.8-150500.5.36.1 as a component of openSUSE Leap 15.5 Issue summary: Calling the OpenSSL API function SSL_free_buffers may cause memory to be accessed that was previously freed in some situations Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code. However, only applications that directly call the SSL_free_buffers function are affected by this issue. Applications that do not call this function are not vulnerable. Our investigations indicate that this function is rarely used by applications. The SSL_free_buffers function is used to free the internal OpenSSL buffer used when processing an incoming record from the network. The call is only expected to succeed if the buffer is not currently in use. However, two scenarios have been identified where the buffer is freed even when still in use. The first scenario occurs where a record header has been received from the network and processed by OpenSSL, but the full record body has not yet arrived. In this case calling SSL_free_buffers will succeed even though a record has only been partially processed and the buffer is still in use. The second scenario occurs where a full record containing application data has been received and processed by OpenSSL but the application has only read part of this data. Again a call to SSL_free_buffers will succeed even though the buffer is still in use. While these scenarios could occur accidentally during normal operation a malicious attacker could attempt to engineer a stituation where this occurs. We are not aware of this issue being actively exploited. The FIPS modules in 3.3, 3.2, 3.1 and 3.0 are not affected by this issue. CVE-2024-4741 Container suse/ltss/sle15.5/sle15:latest:libopenssl3-3.0.8-150500.5.36.1 Container suse/ltss/sle15.5/sle15:latest:openssl-3-3.0.8-150500.5.36.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:libopenssl-3-devel-3.0.8-150500.5.36.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:libopenssl3-3.0.8-150500.5.36.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:openssl-3-3.0.8-150500.5.36.1 openSUSE Leap 15.5:libopenssl-3-devel-3.0.8-150500.5.36.1 openSUSE Leap 15.5:libopenssl-3-devel-32bit-3.0.8-150500.5.36.1 openSUSE Leap 15.5:libopenssl3-3.0.8-150500.5.36.1 openSUSE Leap 15.5:libopenssl3-32bit-3.0.8-150500.5.36.1 openSUSE Leap 15.5:openssl-3-3.0.8-150500.5.36.1 openSUSE Leap 15.5:openssl-3-doc-3.0.8-150500.5.36.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2024/suse-su-20242020-1/ https://www.suse.com/security/cve/CVE-2024-4741.html CVE-2024-4741 https://bugzilla.suse.com/1225551 SUSE Bug 1225551 https://bugzilla.suse.com/1225552 SUSE Bug 1225552