An issue was discovered in Envoy 1.12.0. An untrusted remote client may send an HTTP header (such as Host) with whitespace after the header content. Envoy will treat "header-value " as a different string from "header-value" so for example with the Host header "example.com " one could bypass "example.com" matchers.

This update for nghttp2 fixes the following issues :

nghttp2 was update to version 1.40.0 (bsc#1166481)

  - lib: Add nghttp2_check_authority as public API

  - lib: Fix the bug that stream is closed with wrong error     code

  - lib: Faster huffman encoding and decoding

  - build: Avoid filename collision of static and dynamic     lib

  - build: Add new flag ENABLE_STATIC_CRT for Windows

  - build: cmake: Support building nghttpx with systemd

  - third-party: Update neverbleed to fix memory leak

  - nghttpx: Fix bug that mruby is incorrectly shared     between backends

  - nghttpx: Reconnect h1 backend if it lost connection     before sending headers

  - nghttpx: Returns 408 if backend timed out before sending     headers

  - nghttpx: Fix request stal

This update was imported from the SUSE:SLE-15:Update update project.

This update for nghttp2 fixes the following issues :

nghttp2 was update to version 1.40.0 (bsc#1166481)

lib: Add nghttp2_check_authority as public API

lib: Fix the bug that stream is closed with wrong error code

lib: Faster huffman encoding and decoding

build: Avoid filename collision of static and dynamic lib

build: Add new flag ENABLE_STATIC_CRT for Windows

build: cmake: Support building nghttpx with systemd

third-party: Update neverbleed to fix memory leak

nghttpx: Fix bug that mruby is incorrectly shared between backends

nghttpx: Reconnect h1 backend if it lost connection before sending headers

nghttpx: Returns 408 if backend timed out before sending headers

nghttpx: Fix request stal

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.

An update of the envoy package has been released.

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:4222 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    This advisory covers the RPM packages for the OpenShift Service Mesh 1.0.3 release.

    Security Fix(es):

    * An untrusted remote client may send HTTP/2 requests that write to the heap outside of the request     buffers when the upstream is HTTP/1 (CVE-2019-18801)

    * Malformed request header may cause bypass of route matchers resulting in escalation of privileges or     information disclosure (CVE-2019-18802)

    * Malformed HTTP request without the Host header may cause abnormal termination of the Envoy process     (CVE-2019-18838)

    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
146918	openSUSE Security Update : nghttp2 (openSUSE-2021-341)	Nessus	SuSE Local Security Checks	critical
134934	openSUSE Security Update : nghttp2 (openSUSE-2020-379)	Nessus	SuSE Local Security Checks	critical
134757	SUSE SLED15 / SLES15 Security Update : nghttp2 (SUSE-SU-2020:0722-1)	Nessus	SuSE Local Security Checks	critical
134206	Photon OS 1.0: Envoy PHSA-2020-1.0-0281	Nessus	PhotonOS Local Security Checks	critical
133687	Photon OS 2.0: Envoy PHSA-2020-2.0-0207	Nessus	PhotonOS Local Security Checks	critical
132031	RHEL 7 / 8 : Red Hat OpenShift Service Mesh 1.0.3 RPMs (RHSA-2019:4222)	Nessus	Red Hat Local Security Checks	critical

Detections

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CVE-2019-18802

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Tenable Plugins

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