The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:1808-1 advisory.

    - CVE-2024-2511: Fixed unconstrained session cache growth in TLSv1.3 (bsc#1222548).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when     processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to     trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3     if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured     and the default anti-replay protection is in use). In this case, under certain conditions, the session     cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache     will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario     for this failure to force a Denial of Service. It may also happen by accident in normal operation. This     issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in     3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this     issue.(CVE-2024-2511)

Tenable has extracted the preceding description block directly from the EulerOS openssl security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the openssl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when     processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to     trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3     if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured     and the default anti-replay protection is in use). In this case, under certain conditions, the session     cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache     will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario     for this failure to force a Denial of Service. It may also happen by accident in normal operation. This     issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in     3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this     issue.(CVE-2024-2511)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization openssl security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Oracle Essbase installed on the remote host is missing a security patch from the October 2024 Critical Patch Update (CPU). It is, therefore, affected by:

  - Vulnerability in Oracle Essbase (component: Essbase Web Platform (curl)). The supported version that is affected is     21.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols     to compromise Oracle Essbase. Successful attacks require human interaction from a person other than the attacker.     Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently     repeatable crash (complete DOS) of Oracle Essbase. (CVE-2024-7264)

  - Security-in-Depth issue in Oracle Essbase (component: Essbase Web Platform (Apache Xerces-C++)). (CVE-2024-23807)

  - Security-in-Depth issue in Oracle Essbase (component: Essbase Web Platform (OpenSSL)). (CVE-2024-2511)   Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:9333 advisory.

    OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS)     protocols, as well as a full-strength general-purpose cryptography library.

    Security Fix(es):

    * openssl: Unbounded memory growth with session handling in TLSv1.3 (CVE-2024-2511)

    * openssl: Excessive time spent checking DSA keys and parameters (CVE-2024-4603)

    * openssl: Use After Free with SSL_free_buffers (CVE-2024-4741)

    * openssl: SSL_select_next_proto buffer overread (CVE-2024-5535)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of openssl installed on the remote host is prior to 1.1.1za. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2024-199-01 advisory.

    New openssl packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the openssl security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions

Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service.

This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner.

A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue. 

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	Name	Product	Family	Published	Updated	Severity
198140	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : openssl-1_1 (SUSE-SU-2024:1808-1)	Nessus	SuSE Local Security Checks	5/30/2024	5/30/2024	medium
200929	EulerOS 2.0 SP11 : openssl (EulerOS-SA-2024-1842)	Nessus	Huawei Local Security Checks	6/25/2024	6/25/2024	medium
202426	EulerOS 2.0 SP10 : openssl (EulerOS-SA-2024-1893)	Nessus	Huawei Local Security Checks	7/15/2024	7/15/2024	medium
202427	EulerOS 2.0 SP10 : openssl (EulerOS-SA-2024-1917)	Nessus	Huawei Local Security Checks	7/15/2024	7/15/2024	medium
202538	EulerOS 2.0 SP9 : openssl (EulerOS-SA-2024-1969)	Nessus	Huawei Local Security Checks	7/16/2024	7/16/2024	medium
202539	EulerOS 2.0 SP9 : openssl (EulerOS-SA-2024-1942)	Nessus	Huawei Local Security Checks	7/16/2024	7/16/2024	medium
206539	EulerOS Virtualization 2.12.0 : openssl (EulerOS-SA-2024-2334)	Nessus	Huawei Local Security Checks	9/3/2024	3/31/2025	medium
209277	Oracle Essbase Multiple Vulnerabilities (October 2024 CPU)	Nessus	Misc.	10/18/2024	4/17/2025	critical
210793	RHEL 9 : openssl and openssl-fips-provider (RHSA-2024:9333)	Nessus	Red Hat Local Security Checks	11/12/2024	4/14/2025	critical
202581	Slackware Linux 15.0 / current openssl Multiple Vulnerabilities (SSA:2024-199-01)	Nessus	Slackware Local Security Checks	7/17/2024	4/14/2025	medium
502258	Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices Uncontrolled Resource Consumption (CVE-2024-2511)	Tenable OT Security	Tenable.ot	6/3/2024	10/29/2025	medium

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