This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before 2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016707 advisory.

    This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before     2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a     java.lang.OutOfMemoryError exception.

Tenable has extracted the preceding description block directly from the Unity Linux 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before     2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a     java.lang.OutOfMemoryError exception. (CVE-2020-28491)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - This affects the package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor from 0 and before
    2.11.4, from 2.12.0-rc1 and before 2.12.1. Unchecked allocation of byte buffer can cause a
    java.lang.OutOfMemoryError exception. (CVE-2020-28491)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3529 advisory.

    Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and     includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the     References.

    Security Fix(es):

    * jackson-dataformat-cbor:  Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError     exception (CVE-2020-28491)

    * keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)

    * keycloak: Anyone can register a new device when there is no device registered for passwordless login     (CVE-2021-3632)

    * keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows     boundlessly could lead to a DoS attack (CVE-2021-3637)

    * keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)

    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.

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 remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3527 advisory.

    Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and     includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the     References.

    Security Fix(es):

    * jackson-dataformat-cbor:  Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError     exception (CVE-2020-28491)

    * keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)

    * keycloak: Anyone can register a new device when there is no device registered for passwordless login     (CVE-2021-3632)

    * keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows     boundlessly could lead to a DoS attack (CVE-2021-3637)

    * keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)

    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.

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 remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3528 advisory.

    Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and     includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the     References.

    Security Fix(es):

    * jackson-dataformat-cbor:  Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError     exception (CVE-2020-28491)

    * keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)

    * keycloak: Anyone can register a new device when there is no device registered for passwordless login     (CVE-2021-3632)

    * keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows     boundlessly could lead to a DoS attack (CVE-2021-3637)

    * keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)

    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.

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 Oracle WebLogic Server installed on the remote host is missing a security patch from the July 2022 Critical Patch Update (CPU). It is, therefore, affected by multiple vulnerabilities, including:

  - Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Third Party     Tools, Samples (Spring Framework)). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and     14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP     to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of     Oracle WebLogic Server. (CVE-2022-22965)

  - Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Centralized     Third Party Jars (OWASP Enterprise Security API)). Supported versions that are affected are 12.2.1.3.0,     12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network     access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result     in takeover of Oracle WebLogic Server. (CVE-2022-23457)

  - Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Centralized     Third Party Jars (Apache Maven)). Supported versions that are affected are 12.2.1.3.0 and 12.2.1.4.0.
    Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to     compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized     creation, deletion or modification access to critical data or all Oracle WebLogic Server accessible data     as well as unauthorized access to critical data or complete access to all Oracle WebLogic Server     accessible data. (CVE-2021-26291)

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

ID	Name	Product	Family	Severity
316210	Unity Linux 20.1070e Security Update: jackson-dataformats-binary (UTSA-2026-016707)	Nessus	Unity Linux Local Security Checks	high
252718	Linux Distros Unpatched Vulnerability : CVE-2020-28491	Nessus	Misc.	high
420572	SCA: security update for com.fasterxml.jackson.dataformat:jackson-dataformat-cbor (GHSA-xmc8-26q4-qjhx)	Tenable Cloud Security	SCA Checks	high
420572	SCA: security update for com.fasterxml.jackson.dataformat:jackson-dataformat-cbor (GHSA-xmc8-26q4-qjhx)	Tenable Self-Hosted Container Security	SCA Checks	high
165157	RHEL 8 : Red Hat Single Sign-On 7.4.9 security update on RHEL 8 (Moderate) (RHSA-2021:3529)	Nessus	Red Hat Local Security Checks	high
165141	RHEL 6 : Red Hat Single Sign-On 7.4.9 security update on RHEL 6 (Moderate) (RHSA-2021:3527)	Nessus	Red Hat Local Security Checks	high
165123	RHEL 7 : Red Hat Single Sign-On 7.4.9 security update on RHEL 7 (Moderate) (RHSA-2021:3528)	Nessus	Red Hat Local Security Checks	high
163298	Oracle WebLogic Server (Jul 2022 CPU)	Nessus	Misc.	critical
161231	SUSE SLED15: jackson-annotations / jackson-annotations-javadoc / jackson-bom / etc (SUSE-SU-2022:1678-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2020-28491

high

Tenable Plugins

high

high

high

high

high

high

high

critical

high