This update for nghttp2 fixes the following issues :

CVE-2020-11080: HTTP/2 Large Settings Frame DoS (bsc#1181358)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:2850 advisory.

    libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.

    Security Fix(es):

    * nghttp2: overly large SETTINGS frames can lead to DoS (CVE-2020-11080)

    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 this issue 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-2020:3042 advisory.

    Node.js is a software development platform for building fast and scalable network applications in the     JavaScript programming language.

    The following packages have been upgraded to a later upstream version: nodejs (10.21.0).

    Security Fix(es):

    * nghttp2: overly large SETTINGS frames can lead to DoS (CVE-2020-11080)

    * nodejs-minimist: prototype pollution allows adding or modifying properties of Object.prototype using a     constructor or __proto__ payload (CVE-2020-7598)

    * nodejs: memory corruption in napi_get_value_string_* functions (CVE-2020-8174)

    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 nghttp2 installed on the remote host is prior to 1.33.0-1.1.6. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1404 advisory.

    In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service.
    The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of     14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at     100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement     nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of     settings entries are large (e.g., > 32), then drop the connection. (CVE-2020-11080)

Tenable has extracted the preceding description block directly from the tested product 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 remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2784 advisory.

    libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.

    Security Fix(es):

    * nghttp2: overly large SETTINGS frames can lead to DoS (CVE-2020-11080)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2020:2755 advisory.

  - In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service.
    The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of     14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at     100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement     nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of     settings entries are large (e.g., > 32), then drop the connection. (CVE-2020-11080)

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

ID	Name	Product	Family	Published	Updated	Severity
148143	SUSE SLES15 Security Update : nghttp2 (SUSE-SU-2021:0931-1)	Nessus	SuSE Local Security Checks	3/26/2021	1/8/2024	high
138170	RHEL 8 : nghttp2 (RHSA-2020:2850)	Nessus	Red Hat Local Security Checks	7/7/2020	11/7/2024	high
138801	RHEL 8 : nodejs:10 (RHSA-2020:3042)	Nessus	Red Hat Local Security Checks	7/21/2020	11/7/2024	high
139085	Amazon Linux AMI : nghttp2 (ALAS-2020-1404)	Nessus	Amazon Linux Local Security Checks	7/30/2020	12/11/2024	high
170295	RHEL 6 / 7 : httpd24-nghttp2 (RHSA-2020:2784)	Nessus	Red Hat Local Security Checks	1/23/2023	11/7/2024	high
184573	Rocky Linux 8 : nghttp2 (RLSA-2020:2755)	Nessus	Rocky Linux Local Security Checks	11/6/2023	12/22/2023	high

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