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Gentoo: GLSA-201612-13 Normal: nghttp2 Denial of Service Issue

gentoo
Calendar Grey December 5, 2016
Dist Gentoo Esm H88
Safeguard your Gentoo system against Denial of Service threats by upgrading nghttp2 with this streamlined guide ensuring system integrity throughout the process
Nghttp2 is vulnerable to a Denial of Service attack.

Summary

Nghttpd, nghttp, and libnghttp2_asio applications do not limit the memory usage for the incoming HTTP header field. If a peer sends a specially crafted HTTP/2 HEADERS frame and CONTINUATION frame, they will crash with an out of memory error.

Topics%20covered

Topics Covered

security advisory denial of service security issue gentoo software update normal nghttp2

Resolution

All nghttp2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-libs/nghttp2-1.7.1"

References

[ 1 ] CVE-2016-1544 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1544

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201612-13
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: nghttp2: Denial of Service
Date: December 05, 2016
Bugs: #574780
ID: 201612-13

Topics%20covered

Topics Covered

security advisory denial of service security issue gentoo software update normal nghttp2

Synopsis

Nghttp2 is vulnerable to a Denial of Service attack.

Background

Nghttp2 is an implementation of HTTP/2 and its header compression algorithm HPACK in C.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/nghttp2 < 1.7.1 >= 1.7.1

Impact

===== A remote attacker could possibly cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

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