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Joined: 12 May 2004
Posts: 2331

PostPosted: Mon Dec 05, 2016 3:26 am    Post subject: [ GLSA 201612-13 ] nghttp2 Reply with quote

Gentoo Linux Security Advisory

Title: nghttp2: Denial of Service (GLSA 201612-13)
Severity: normal
Exploitable: remote
Date: December 05, 2016
Bug(s): #574780
ID: 201612-13


Nghttp2 is vulnerable to a Denial of Service attack.


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

Affected Packages

Package: net-libs/nghttp2
Vulnerable: < 1.7.1
Unaffected: >= 1.7.1
Architectures: All supported architectures


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.


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


There is no known workaround at this time.


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


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