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RedHat: RHSA-2019-2692:01 Important: nghttp2 DoS Risk and Resource Threat

red hat
Calendar Grey September 9, 2019
Dist Redhat Esm H88
Critical security patch released for nghttp2 in Red Hat Enterprise Linux 8. Essential corrections and CVSS risk ratings provided.
An update for nghttp2 is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.
Security Fix(es):
* HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511)
* HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513)
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.

Topics%20covered

Topics Covered

security advisory denial of service red hat important resource consumption nghttp2

References

https://access.redhat.com/security/cve/CVE-2019-9511 https://access.redhat.com/security/cve/CVE-2019-9513 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: nghttp2-1.33.0-1.el8_0.1.src.rpm
aarch64: libnghttp2-1.33.0-1.el8_0.1.aarch64.rpm libnghttp2-debuginfo-1.33.0-1.el8_0.1.aarch64.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.aarch64.rpm nghttp2-debugsource-1.33.0-1.el8_0.1.aarch64.rpm
ppc64le: libnghttp2-1.33.0-1.el8_0.1.ppc64le.rpm libnghttp2-debuginfo-1.33.0-1.el8_0.1.ppc64le.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.ppc64le.rpm nghttp2-debugsource-1.33.0-1.el8_0.1.ppc64le.rpm
s390x: libnghttp2-1.33.0-1.el8_0.1.s390x.rpm libnghttp2-debuginfo-1.33.0-1.el8_0.1.s390x.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.s390x.rpm nghttp2-debugsource-1.33.0-1.el8_0.1.s390x.rpm
x86_64: libnghttp2-1.33.0-1.el8_0.1.i686.rpm libnghttp2-1.33.0-1.el8_0.1.x86_64.rpm libnghttp2-debuginfo-1.33.0-1.el8_0.1.i686.rpm libnghttp2-debuginfo-1.33.0-1.el8_0.1.x86_64.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.i686.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.x86_64.rpm nghttp2-debugsource-1.33.0-1.el8_0.1.i686.rpm nghttp2-debugsource-1.33.0-1.el8_0.1.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
aarch64: libnghttp2-debuginfo-1.33.0-1.el8_0.1.aarch64.rpm libnghttp2-devel-1.33.0-1.el8_0.1.aarch64.rpm nghttp2-1.33.0-1.el8_0.1.aarch64.rpm nghttp2-debuginfo-1.33.0-1.el8_0.1.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2692-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2692
Issue date: 2019-09-09

Topic

An update for nghttp2 is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service red hat important resource consumption nghttp2

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption

1741860 - CVE-2019-9511 HTTP/2: large amount of data request leads to denial of service

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