From owner-svn-ports-head@freebsd.org Fri Apr 13 20:49:06 2018 Return-Path: Delivered-To: svn-ports-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 34C03F8030A; Fri, 13 Apr 2018 20:49:06 +0000 (UTC) (envelope-from sunpoet@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D6B4083085; Fri, 13 Apr 2018 20:49:04 +0000 (UTC) (envelope-from sunpoet@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id AC9031EBE8; Fri, 13 Apr 2018 20:49:04 +0000 (UTC) (envelope-from sunpoet@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w3DKn4ds060969; Fri, 13 Apr 2018 20:49:04 GMT (envelope-from sunpoet@FreeBSD.org) Received: (from sunpoet@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w3DKn4G0060968; Fri, 13 Apr 2018 20:49:04 GMT (envelope-from sunpoet@FreeBSD.org) Message-Id: <201804132049.w3DKn4G0060968@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sunpoet set sender to sunpoet@FreeBSD.org using -f From: Sunpoet Po-Chuan Hsieh Date: Fri, 13 Apr 2018 20:49:04 +0000 (UTC) To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r467268 - head/security/vuxml X-SVN-Group: ports-head X-SVN-Commit-Author: sunpoet X-SVN-Commit-Paths: head/security/vuxml X-SVN-Commit-Revision: 467268 X-SVN-Commit-Repository: ports MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-ports-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the ports tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Apr 2018 20:49:06 -0000 Author: sunpoet Date: Fri Apr 13 20:49:04 2018 New Revision: 467268 URL: https://svnweb.freebsd.org/changeset/ports/467268 Log: Document nghttp2 vulnerability Modified: head/security/vuxml/vuln.xml Modified: head/security/vuxml/vuln.xml ============================================================================== --- head/security/vuxml/vuln.xml Fri Apr 13 20:48:58 2018 (r467267) +++ head/security/vuxml/vuln.xml Fri Apr 13 20:49:04 2018 (r467268) @@ -58,6 +58,50 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> + + nghttp2 -- Denial of service due to NULL pointer dereference + + + libnghttp2 + nghttp2 + 1.10.01.31.1 + + + + +

nghttp2 blog:

+
If ALTSVC frame is received by libnghttp2 and it is larger than it can + accept, the pointer field which points to ALTSVC frame payload is left + NULL. Later libnghttp2 attempts to access another field through the + pointer, and gets segmentation fault.
+
ALTSVC frame is defined by RFC 7838.
+
The largest frame size libnghttp2 accept is by default 16384 bytes.
+
Receiving ALTSVC frame is disabled by default. Application has to + enable it explicitly by calling + nghttp2_option_set_builtin_recv_extension_type(opt, NGHTTP2_ALTSVC).
+
Transmission of ALTSVC is always enabled, and it does not cause this + vulnerability.
+
ALTSVC frame is expected to be sent by server, and received by client + as defined in RFC 7838.
+
Client and server are both affected by this vulnerability if the + reception of ALTSVC frame is enabled. As written earlier, it is useless + to enable reception of ALTSVC frame on server side. So, server is + generally safe unless application accidentally enabled the reception of + ALTSVC frame.
+

+ + + + https://nghttp2.org/blog/2018/04/12/nghttp2-v1-31-1/ + CVE-2018-1000168 + + + 2018-04-04 + 2018-04-13 + + + roundcube -- IMAP command injection vulnerability