It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table. Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4436-1 advisory.

    - CVE-2024-7246: HPACK table poisoning by gRPC clients communicating with a HTTP/2 proxy. (bsc#1228919)
    - CVE-2024-11407: data corruption on servers with transmit zero copy enabled. (bsc#1233821)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4428-1 advisory.

    - CVE-2024-11407: data corruption on servers with transmit zero copy enabled. (bsc#1233821)
    - CVE-2024-7246: HPACK table poisoning by gRPC clients communicating with a HTTP/2 proxy. (bsc#1228919)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4429-1 advisory.

    - CVE-2024-11407: data corruption on servers with transmit zero copy enabled. (bsc#1233821)
    - CVE-2024-7246: HPACK table poisoning by gRPC clients communicating with a HTTP/2 proxy. (bsc#1228919)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4401-1 advisory.

    - CVE-2024-7246: HPACK table poisoning by gRPC clients communicating with a HTTP/2 proxy. (bsc#1228919)
    - CVE-2024-11407: data corruption on servers with transmit zero copy enabled. (bsc#1233821)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4393-1 advisory.

    - CVE-2024-11407: data corruption on servers with transmit zero copy enabled. (bsc#1233821)
    - CVE-2024-7246: HPACK table poisoning by gRPC clients communicating with a HTTP/2 proxy. (bsc#1228919)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-769 advisory.

    It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the     proxy and the backend such that other clients see failed requests. It's also possible to use this     vulnerability to leak other clients HTTP header keys, but not values.

    This occurs because the error status for a misencoded header is not cleared between header reads,     resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until     cleared from the HPACK table.

    Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5,     1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4. (CVE-2024-7246)

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 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:8906 advisory.

    Red Hat Satellite is a system management solution that allows organizations to configure and maintain     their systems without the necessity to provide public Internet access to their servers or other client     systems. It performs provisioning and configuration management of predefined standard operating     environments.

    Security Fix(es):

    * mosquitto: sending specific sequences of packets may trigger memory leak     (CVE-2024-8376)
    * micromatch: vulnerable to Regular Expression Denial of Service (CVE-2024-4067)     urllib3: proxy-authorization request header is not stripped during cross-origin redirects (CVE-2024-37891)
    * node-tar: denial of service while parsing a tar file due to lack of folders depth validation     (CVE-2024-28863)
    * python-django: Potential denial-of-service in django.utils.html.urlize() (CVE-2024-38875)
    * python-django: Username enumeration through timing difference for users with unusable passwords     (CVE-2024-39329)
    * python-django: Potential directory-traversal in django.core.files.storage.Storage.save()     (CVE-2024-39330)
    * python-django: Potential denial-of-service in django.utils.translation.get_supported_language_variant()     (CVE-2024-39614)
    * github.com/jaraco/zipp: Denial of Service (infinite loop) via crafted zip file in jaraco/zipp     (CVE-2024-5569)
    * puppet-foreman: An authentication bypass vulnerability exists in Foreman (CVE-2024-7012)
    * python-django: Potential SQL injection in QuerySet.values() and values_list() (CVE-2024-42005)
    * grpc: client communicating with a HTTP/2 proxy can poison the HPACK table between the proxy and the     backend (CVE-2024-7246)
    * puppet-pulpcore: An authentication bypass vulnerability exists in pulpcore (CVE-2024-7923)
    * foreman: Read-only access to entire DB from templates (CVE-2024-8553)

    Users of Red Hat Satellite are advised to upgrade to these updated packages, which fix these bugs.

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 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:6428 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):

    * automation-controller: Django: Potential SQL injection in QuerySet.values() and values_list()     (CVE-2024-42005)
    * automation-controller: Django: Potential denial-of-service vulnerability in django.utils.html.urlize()     and AdminURLFieldWidget (CVE-2024-41991)
    * automation-controller: Django: Potential denial-of-service vulnerability in django.utils.html.urlize()     (CVE-2024-41990)
    * automation-controller: python-jose: algorithm confusion with OpenSSH ECDSA keys and other key formats     (CVE-2024-33663)
    * automation-controller: python-social-auth: Improper Handling of Case Sensitivity in social-auth-app-     django (CVE-2024-32879)
    * automation-controller: Gain access to the k8s API server via job execution with Container Group     (CVE-2024-6840)
    * python3/python39-django: Potential SQL injection in QuerySet.values() and values_list() (CVE-2024-42005)
    * python3/python39-django: Potential denial-of-service vulnerability in django.utils.html.urlize() and     AdminURLFieldWidget (CVE-2024-41991)
    * python3/python39-django: Potential denial-of-service vulnerability in django.utils.html.urlize()     (CVE-2024-41990)
    * python3/python39-django: Memory exhaustion in django.utils.numberformat.floatformat() (CVE-2024-41989)
    * python3/python39-django: Potential denial-of-service in     django.utils.translation.get_supported_language_variant() (CVE-2024-39614)
    * python3/python39-django: Potential directory-traversal in django.core.files.storage.Storage.save()     (CVE-2024-39330)
    * python3/python39-django: Username enumeration through timing difference for users with unusable     passwords (CVE-2024-39329)
    * python3/python39-django: Potential denial-of-service in django.utils.html.urlize() (CVE-2024-38875)
    * python3/python39-grpcio: client communicating with a HTTP/2 proxy can poison the HPACK table between the     proxy and the backend (CVE-2024-7246)
    * python3/python39-zipp: Denial of Service (infinite loop) via crafted zip file (CVE-2024-5569)

    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.

    Updates and fixes for automation controller:
    * Updated the receptor to not automatically release the receptor work unit when     RECEPTOR_KEEP_WORK_ON_ERROR is set to true (AAP-27635)
    * Updated the Help link in the REST API to point to the latest API Reference documentation (AAP-27573)
    * Fixed a timeout error in the UI when trying to load the Activity Stream (AAP-26772)
    * automation-controller has been updated to 4.5.10

    Updates and fixes for automation hub:
    * API browser now correctly escapes JSON values (AAH-3272, AAP-14463)
    * python3/python39-pulpcore has been updated to 3.28.31
    * python3/python39-pulp-ansible has been updated to 0.20.8

    Additional fixes:
    * Gunicorn python package will no longer obsolete itself when checking for or applying updates (AAP-28364)
    * python3/python39-django has been updated to 4.2.15
    * python3/python39-grpcio has been updated to 1.58.3
    * python3/python39-jmespath has been updated to 0.10.0-5
    * python3/python39-zipp has been updated to 3.19.2

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.

An update of the grpc package has been released.

ID	Name	Product	Family	Severity
213459	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : grpc (SUSE-SU-2024:4436-1)	Nessus	SuSE Local Security Checks	medium
213412	SUSE SLES15 Security Update : python-grpcio (SUSE-SU-2024:4428-1)	Nessus	SuSE Local Security Checks	medium
213411	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python-grpcio (SUSE-SU-2024:4429-1)	Nessus	SuSE Local Security Checks	medium
213310	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : grpc (SUSE-SU-2024:4401-1)	Nessus	SuSE Local Security Checks	medium
213308	SUSE SLES15 / openSUSE 15 Security Update : python-grpcio (SUSE-SU-2024:4393-1)	Nessus	SuSE Local Security Checks	medium
212353	Amazon Linux 2023 : grpc, grpc-cpp, grpc-data (ALAS2023-2024-769)	Nessus	Amazon Linux Local Security Checks	medium
210402	RHEL 8 / 9 : Satellite 6.16.0 (Critical) (RHSA-2024:8906)	Nessus	Red Hat Local Security Checks	high
206781	RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.4 Product Security and Bug Fix Update (Moderate) (RHSA-2024:6428)	Nessus	Red Hat Local Security Checks	medium
206085	Photon OS 5.0: Grpc PHSA-2024-5.0-0351	Nessus	PhotonOS Local Security Checks	medium

Detections

Analytics

CVE-2024-7246

medium

Tenable Plugins

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medium

medium

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high

medium

medium