A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4685 advisory.

  - kernel: net: bluetooth: heap buffer overflow when processing extended advertising report events     (CVE-2020-24490)

  - kernel: Red Hat only CVE-2020-12351 regression (CVE-2020-25661)

  - kernel: Red Hat only CVE-2020-12352 regression (CVE-2020-25662)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4685 advisory.

    - [net] Bluetooth: fix kernel oops in store_pending_adv_report (Gopal Tiwari) [1888454 1888455]     {CVE-2020-24490}
    - [net] Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel (Gopal Tiwari) [1888257     1888258] {CVE-2020-12351}

Tenable has extracted the preceding description block directly from the Oracle 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4686 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: net: bluetooth: heap buffer overflow when processing extended advertising report events     (CVE-2020-24490)

    * kernel: Red Hat only CVE-2020-12351 regression (CVE-2020-25661)

    * kernel: Red Hat only CVE-2020-12352 regression (CVE-2020-25662)

    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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4685 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: net: bluetooth: heap buffer overflow when processing extended advertising report events     (CVE-2020-24490)

    * kernel: Red Hat only CVE-2020-12351 regression (CVE-2020-25661)

    * kernel: Red Hat only CVE-2020-12352 regression (CVE-2020-25662)

    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.

ID	Name	Product	Family	Severity
146015	CentOS 8 : kernel (CESA-2020:4685)	Nessus	CentOS Local Security Checks	high
142899	Oracle Linux 8 : kernel (ELSA-2020-4685)	Nessus	Oracle Linux Local Security Checks	high
142437	RHEL 8 : kernel-rt (RHSA-2020:4686)	Nessus	Red Hat Local Security Checks	high
142402	RHEL 8 : kernel (RHSA-2020:4685)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2020-25661

high

Tenable Plugins

high

high

high

high