Date: Thu, 3 May 2018 23:17:24 +0000 (UTC) From: Dima Panov <fluffy@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r468996 - in head/mail: opensmtpd opensmtpd-devel opensmtpd-devel/files opensmtpd/files Message-ID: <201805032317.w43NHODD081450@repo.freebsd.org>
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Author: fluffy Date: Thu May 3 23:17:24 2018 New Revision: 468996 URL: https://svnweb.freebsd.org/changeset/ports/468996 Log: - Prevent OpenSMTPD session hangs and retain a descriptor forever on empty body (i.e. when the dot appears on the line directly after the headers). This could be used by an attacker to exhaust resources. PR: 227899 Submitted by: grembo Obtained from: OpenSMTPD git repo (backported) MFH: 2018Q2 Added: head/mail/opensmtpd-devel/files/patch-smtpd-rfc2822.c (contents, props changed) head/mail/opensmtpd-devel/files/patch-smtpd-smtp_session.c (contents, props changed) head/mail/opensmtpd/files/patch-smtpd-rfc2822.c (contents, props changed) head/mail/opensmtpd/files/patch-smtpd-smtp_session.c (contents, props changed) Modified: head/mail/opensmtpd-devel/Makefile head/mail/opensmtpd/Makefile Modified: head/mail/opensmtpd-devel/Makefile ============================================================================== --- head/mail/opensmtpd-devel/Makefile Thu May 3 23:10:11 2018 (r468995) +++ head/mail/opensmtpd-devel/Makefile Thu May 3 23:17:24 2018 (r468996) @@ -4,7 +4,7 @@ PORTNAME= opensmtpd PORTVERSION= 201606220754 DISTVERSIONSUFFIX= p1 -PORTREVISION= 4 +PORTREVISION= 5 PORTEPOCH= 1 CATEGORIES= mail MASTER_SITES= http://www.opensmtpd.org/archives/ \ Added: head/mail/opensmtpd-devel/files/patch-smtpd-rfc2822.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/mail/opensmtpd-devel/files/patch-smtpd-rfc2822.c Thu May 3 23:17:24 2018 (r468996) @@ -0,0 +1,19 @@ +--- smtpd/rfc2822.c.orig 2018-05-01 13:33:10.000000000 +0000 ++++ smtpd/rfc2822.c 2018-05-01 13:34:47.931554000 +0000 +@@ -53,4 +53,7 @@ + struct rfc2822_hdr_miss_cb *hdr_miss_cb; ++ ++ if (!rp->in_hdr) ++ goto end; + + TAILQ_FOREACH(hdr_cb, &rp->hdr_cb, next) + if (strcasecmp(hdr_cb->name, rp->header.name) == 0) { +@@ -151,6 +152,8 @@ + return; + + header_callback(rp); ++ ++ missing_headers_callback(rp); + } + + void Added: head/mail/opensmtpd-devel/files/patch-smtpd-smtp_session.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/mail/opensmtpd-devel/files/patch-smtpd-smtp_session.c Thu May 3 23:17:24 2018 (r468996) @@ -0,0 +1,11 @@ +--- smtpd/smtp_session.c.orig 2018-05-01 13:35:00.375262000 +0000 ++++ smtpd/smtp_session.c 2018-05-01 13:37:22.637096000 +0000 +@@ -1345,6 +1345,8 @@ + s->dataeom = 1; + if (iobuf_queued(&s->obuf) == 0) + smtp_data_io_done(s); ++ else ++ io_reload(&s->oev); + return; + } + Modified: head/mail/opensmtpd/Makefile ============================================================================== --- head/mail/opensmtpd/Makefile Thu May 3 23:10:11 2018 (r468995) +++ head/mail/opensmtpd/Makefile Thu May 3 23:17:24 2018 (r468996) @@ -4,7 +4,7 @@ PORTNAME= opensmtpd PORTVERSION= 5.9.2p1 PORTEPOCH= 1 -PORTREVISION= 5 +PORTREVISION= 6 CATEGORIES= mail MASTER_SITES= http://www.opensmtpd.org/archives/ \ http://distfiles.pirateparty.in/ashish/ Added: head/mail/opensmtpd/files/patch-smtpd-rfc2822.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/mail/opensmtpd/files/patch-smtpd-rfc2822.c Thu May 3 23:17:24 2018 (r468996) @@ -0,0 +1,19 @@ +--- smtpd/rfc2822.c.orig 2018-05-01 13:33:10.000000000 +0000 ++++ smtpd/rfc2822.c 2018-05-01 13:34:47.931554000 +0000 +@@ -53,4 +53,7 @@ + struct rfc2822_hdr_miss_cb *hdr_miss_cb; ++ ++ if (!rp->in_hdr) ++ goto end; + + TAILQ_FOREACH(hdr_cb, &rp->hdr_cb, next) + if (strcasecmp(hdr_cb->name, rp->header.name) == 0) { +@@ -151,6 +152,8 @@ + return; + + header_callback(rp); ++ ++ missing_headers_callback(rp); + } + + void Added: head/mail/opensmtpd/files/patch-smtpd-smtp_session.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/mail/opensmtpd/files/patch-smtpd-smtp_session.c Thu May 3 23:17:24 2018 (r468996) @@ -0,0 +1,11 @@ +--- smtpd/smtp_session.c.orig 2018-05-01 13:35:00.375262000 +0000 ++++ smtpd/smtp_session.c 2018-05-01 13:37:22.637096000 +0000 +@@ -1345,6 +1345,8 @@ + s->dataeom = 1; + if (iobuf_queued(&s->obuf) == 0) + smtp_data_io_done(s); ++ else ++ io_reload(&s->oev); + return; + } +
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