diff options
Diffstat (limited to 'network')
| -rw-r--r-- | network/opensmtpd/openbsd64-020-smtpd.patch | 4 | ||||
| -rw-r--r-- | network/opensmtpd/openbsd65-029-smptd-tls.patch | 52 | ||||
| -rw-r--r-- | network/opensmtpd/openbsd66-019-smtpd-exec.patch | 46 | ||||
| -rw-r--r-- | network/opensmtpd/opensmtpd.SlackBuild | 10 |
4 files changed, 110 insertions, 2 deletions
diff --git a/network/opensmtpd/openbsd64-020-smtpd.patch b/network/opensmtpd/openbsd64-020-smtpd.patch index a1aa51607a..8ce7178da8 100644 --- a/network/opensmtpd/openbsd64-020-smtpd.patch +++ b/network/opensmtpd/openbsd64-020-smtpd.patch @@ -1,3 +1,7 @@ +OpenBSD 6.4 errata 020, August 2, 2019 + +smtpd can crash on excessively large input, causing a denial of service. + --- a/smtpd/smtp_session.c 3 Sep 2018 19:01:29 -0000 1.337 +++ b/smtpd/smtp_session.c 1 Aug 2019 21:18:53 -0000 @@ -1904,15 +1904,21 @@ smtp_reply(struct smtp_session *s, char diff --git a/network/opensmtpd/openbsd65-029-smptd-tls.patch b/network/opensmtpd/openbsd65-029-smptd-tls.patch new file mode 100644 index 0000000000..a2727decf8 --- /dev/null +++ b/network/opensmtpd/openbsd65-029-smptd-tls.patch @@ -0,0 +1,52 @@ +OpenBSD 6.5 errata 029, January 30, 2020: + +smtpd can crash on opportunistic TLS downgrade, causing a denial of service. + +--- usr.sbin/smtpd/mta_session.c 23 Dec 2018 16:37:53 -0000 1.115 ++++ usr.sbin/smtpd/mta_session.c 20 Jan 2020 10:36:58 -0000 +@@ -1292,40 +1292,20 @@ mta_io(struct io *io, int evt, void *arg + break; + + case IO_ERROR: ++ case IO_TLSERROR: + log_debug("debug: mta: %p: IO error: %s", s, io_error(io)); +- if (!s->ready) { +- mta_error(s, "IO Error: %s", io_error(io)); +- mta_connect(s); +- break; +- } +- else if (!(s->flags & (MTA_FORCE_TLS|MTA_FORCE_SMTPS|MTA_FORCE_ANYSSL))) { +- /* error in non-strict SSL negotiation, downgrade to plain */ +- if (s->flags & MTA_TLS) { +- log_info("smtp-out: Error on session %016"PRIx64 +- ": opportunistic TLS failed, " +- "downgrading to plain", s->id); +- s->flags &= ~MTA_TLS; +- s->flags |= MTA_DOWNGRADE_PLAIN; +- mta_connect(s); +- break; +- } +- } +- mta_error(s, "IO Error: %s", io_error(io)); +- mta_free(s); +- break; + +- case IO_TLSERROR: +- log_debug("debug: mta: %p: TLS IO error: %s", s, io_error(io)); +- if (!(s->flags & (MTA_FORCE_TLS|MTA_FORCE_SMTPS|MTA_FORCE_ANYSSL))) { ++ if (s->state == MTA_STARTTLS && s->use_smtp_tls) { + /* error in non-strict SSL negotiation, downgrade to plain */ +- log_info("smtp-out: TLS Error on session %016"PRIx64 +- ": TLS failed, " ++ log_info("smtp-out: Error on session %016"PRIx64 ++ ": opportunistic TLS failed, " + "downgrading to plain", s->id); + s->flags &= ~MTA_TLS; + s->flags |= MTA_DOWNGRADE_PLAIN; + mta_connect(s); + break; + } ++ + mta_error(s, "IO Error: %s", io_error(io)); + mta_free(s); + break; diff --git a/network/opensmtpd/openbsd66-019-smtpd-exec.patch b/network/opensmtpd/openbsd66-019-smtpd-exec.patch new file mode 100644 index 0000000000..93ce19dcb1 --- /dev/null +++ b/network/opensmtpd/openbsd66-019-smtpd-exec.patch @@ -0,0 +1,46 @@ +OpenBSD 6.6 errata 019, January 30, 2020: + +An incorrect check allows an attacker to trick mbox delivery into executing +arbitrary commands as root and lmtp delivery into executing arbitrary commands +as an unprivileged user. + +--- usr.sbin/smtpd/smtp_session.c 4 Oct 2019 08:34:29 -0000 1.415 ++++ usr.sbin/smtpd/smtp_session.c 26 Jan 2020 05:56:37 -0000 +@@ -2012,24 +2012,22 @@ smtp_mailaddr(struct mailaddr *maddr, ch + memmove(maddr->user, p, strlen(p) + 1); + } + +- if (!valid_localpart(maddr->user) || +- !valid_domainpart(maddr->domain)) { +- /* accept empty return-path in MAIL FROM, required for bounces */ +- if (mailfrom && maddr->user[0] == '\0' && maddr->domain[0] == '\0') +- return (1); ++ /* accept empty return-path in MAIL FROM, required for bounces */ ++ if (mailfrom && maddr->user[0] == '\0' && maddr->domain[0] == '\0') ++ return (1); + +- /* no user-part, reject */ +- if (maddr->user[0] == '\0') +- return (0); +- +- /* no domain, local user */ +- if (maddr->domain[0] == '\0') { +- (void)strlcpy(maddr->domain, domain, +- sizeof(maddr->domain)); +- return (1); +- } ++ /* no or invalid user-part, reject */ ++ if (maddr->user[0] == '\0' || !valid_localpart(maddr->user)) + return (0); ++ ++ /* no domain part, local user */ ++ if (maddr->domain[0] == '\0') { ++ (void)strlcpy(maddr->domain, domain, ++ sizeof(maddr->domain)); + } ++ ++ if (!valid_domainpart(maddr->domain)) ++ return (0); + + return (1); + } diff --git a/network/opensmtpd/opensmtpd.SlackBuild b/network/opensmtpd/opensmtpd.SlackBuild index d2e54fba71..052a1fcf03 100644 --- a/network/opensmtpd/opensmtpd.SlackBuild +++ b/network/opensmtpd/opensmtpd.SlackBuild @@ -3,7 +3,7 @@ # Slackware build script for opensmtpd # Copyright 2013-2014 Robby Workman, Northport, Alabama, USA -# Copyright 2015-2018 Richard Narron, California, USA +# Copyright 2015-2020 Richard Narron, California, USA # All rights reserved. # # Redistribution and use of this script, with or without modification, is @@ -25,7 +25,7 @@ PRGNAM=opensmtpd VERSION=${VERSION:-6.0.3p1} -BUILD=${BUILD:-4} +BUILD=${BUILD:-5} TAG=${TAG:-_SBo} if [ -z "$ARCH" ]; then @@ -95,6 +95,12 @@ find -L . \ # fix reply buffer overflow cat $CWD/openbsd64-020-smtpd.patch | patch -p1 +# fix tls downgrade +cat $CWD/openbsd65-029-smptd-tls.patch | patch -p1 + +# fix exec +cat $CWD/openbsd66-019-smtpd-exec.patch | patch -p1 + # check null from crypt function cat $CWD/fix-crash-on-authentication.patch | patch -p1 |