ppp: update to version 2.4.8.git-2020-03-21

Use upstream latest git HEAD as it allows to remove the patches
700-radius-Prevent-buffer-overflow-in-rc_mksid,
701-pppd-Fix-bounds-check-in-EAP-code and
702-pppd-Ignore-received-EAP-messages-when-not-doing-EAP and
take in other fixes.

41a7323 pppd: Fixed spelling 'unkown' => 'unknown' (#141)
6b014be pppd: Print version information to stdout instead of stderr (#133)
cba2736 pppd: Add RFC1990 (Multilink) to the See Also section of the man page
f2f9554 pppd: Add mppe.h to the list of headers to install if MPPE is defined
ae54fcf pppd: Obfuscate password argument string
8d45443 pppd: Ignore received EAP messages when not doing EAP
8d7970b pppd: Fix bounds check in EAP code
858976b radius: Prevent buffer overflow in rc_mksid()

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
master
Hans Dedecker 2020-04-05 22:26:33 +02:00
parent 8af80e79bd
commit ae06a650d6
9 changed files with 10 additions and 137 deletions

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@ -13,14 +13,15 @@ PKG_RELEASE:=2
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/paulusmack/ppp
PKG_SOURCE_VERSION:=78cd384ce0f48bb5edb84e4fe9a574eab4a4ad14
PKG_SOURCE_DATE:=2020-03-21
PKG_SOURCE_VERSION:=41a73232c16e9a063cfe3fad461c94af3f450f6c
PKG_MIRROR_HASH:=cf284c312b0c90974d11f8aeece173bcac8475f5b810911f4feb2c5a4db263fe
PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
PKG_LICENSE:=BSD-4-Clause
PKG_CPE_ID:=cpe:/a:samba:ppp
PKG_RELEASE_VERSION:=2.4.8
PKG_VERSION:=$(PKG_RELEASE_VERSION)
PKG_VERSION:=$(PKG_RELEASE_VERSION).git-$(PKG_SOURCE_DATE)
PKG_BUILD_DEPENDS:=libpcap

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@ -34,7 +34,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS) '-DDESTDIR="@DESTDIR@"'
@@ -125,10 +125,10 @@ CFLAGS += -DHAS_SHADOW
@@ -126,10 +126,10 @@ CFLAGS += -DHAS_SHADOW
#LIBS += -lshadow $(LIBS)
endif

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@ -19,7 +19,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
clean:
--- a/pppd/Makefile.linux
+++ b/pppd/Makefile.linux
@@ -107,7 +107,7 @@ ifdef USE_SRP
@@ -108,7 +108,7 @@ ifdef USE_SRP
CFLAGS += -DUSE_SRP -DOPENSSL -I/usr/local/ssl/include
LIBS += -lsrp -L/usr/local/ssl/lib -lcrypto
TARGETS += srp-entry
@ -28,7 +28,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
MANPAGES += srp-entry.8
EXTRACLEAN += srp-entry.o
NEEDDES=y
@@ -219,7 +219,7 @@ all: $(TARGETS)
@@ -220,7 +220,7 @@ all: $(TARGETS)
install: pppd
mkdir -p $(BINDIR) $(MANDIR)
$(EXTRAINSTALL)

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@ -7,7 +7,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
--- a/pppd/Makefile.linux
+++ b/pppd/Makefile.linux
@@ -189,8 +189,8 @@ endif
@@ -190,8 +190,8 @@ endif
ifdef FILTER
ifneq ($(wildcard /usr/include/pcap-bpf.h),)

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@ -23,7 +23,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
# Uncomment the next line to enable multilink PPP (enabled by default)
# Linux distributions: Please leave multilink ENABLED in your builds
# of pppd!
@@ -194,6 +197,14 @@ CFLAGS += -DPPP_FILTER -I$(STAGING_DIR)
@@ -195,6 +198,14 @@ CFLAGS += -DPPP_FILTER -I$(STAGING_DIR)
endif
endif
@ -77,7 +77,7 @@ Signed-off-by: Jo-Philipp Wich <jo@mein.io>
#ifdef MAXOCTETS
{ "maxoctets", o_int, &maxoctets,
"Set connection traffic limit",
@@ -1511,6 +1527,29 @@ callfile(argv)
@@ -1516,6 +1532,29 @@ callfile(argv)
return ok;
}

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@ -28,7 +28,7 @@ This reverts commit 3c7b86229f7bd2600d74db14b1fe5b3896be3875.
# Don't use MSLANMAN unless you really know what you're doing.
#MSLANMAN=y
# Uncomment the next line to include support for MPPE. CHAPMS (above) must
@@ -140,8 +140,7 @@ endif
@@ -141,8 +141,7 @@ endif
ifdef NEEDDES
ifndef USE_CRYPT

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@ -1,30 +0,0 @@
From 858976b1fc3107f1261aae337831959b511b83c2 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Sat, 4 Jan 2020 12:01:32 +1100
Subject: [PATCH] radius: Prevent buffer overflow in rc_mksid()
On some systems getpid() can return a value greater than 65535.
Increase the size of buf[] to allow for this, and use slprintf()
to make sure we never overflow it.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
pppd/plugins/radius/util.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pppd/plugins/radius/util.c b/pppd/plugins/radius/util.c
index 6f976a712951..740131e8377c 100644
--- a/pppd/plugins/radius/util.c
+++ b/pppd/plugins/radius/util.c
@@ -73,9 +73,9 @@ void rc_mdelay(int msecs)
char *
rc_mksid (void)
{
- static char buf[15];
+ static char buf[32];
static unsigned short int cnt = 0;
- sprintf (buf, "%08lX%04X%02hX",
+ slprintf(buf, sizeof(buf), "%08lX%04X%02hX",
(unsigned long int) time (NULL),
(unsigned int) getpid (),
cnt & 0xFF);

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@ -1,37 +0,0 @@
From 8d7970b8f3db727fe798b65f3377fe6787575426 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Mon, 3 Feb 2020 15:53:28 +1100
Subject: [PATCH] pppd: Fix bounds check in EAP code
Given that we have just checked vallen < len, it can never be the case
that vallen >= len + sizeof(rhostname). This fixes the check so we
actually avoid overflowing the rhostname array.
Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
pppd/eap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pppd/eap.c b/pppd/eap.c
index 94407f56a336..1b93db01aebd 100644
--- a/pppd/eap.c
+++ b/pppd/eap.c
@@ -1420,7 +1420,7 @@ int len;
}
/* Not so likely to happen. */
- if (vallen >= len + sizeof (rhostname)) {
+ if (len - vallen >= sizeof (rhostname)) {
dbglog("EAP: trimming really long peer name down");
BCOPY(inp + vallen, rhostname, sizeof (rhostname) - 1);
rhostname[sizeof (rhostname) - 1] = '\0';
@@ -1846,7 +1846,7 @@ int len;
}
/* Not so likely to happen. */
- if (vallen >= len + sizeof (rhostname)) {
+ if (len - vallen >= sizeof (rhostname)) {
dbglog("EAP: trimming really long peer name down");
BCOPY(inp + vallen, rhostname, sizeof (rhostname) - 1);
rhostname[sizeof (rhostname) - 1] = '\0';

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@ -1,61 +0,0 @@
From 8d45443bb5c9372b4c6a362ba2f443d41c5636af Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Mon, 3 Feb 2020 16:31:42 +1100
Subject: [PATCH] pppd: Ignore received EAP messages when not doing EAP
This adds some basic checks to the subroutines of eap_input to check
that we have requested or agreed to doing EAP authentication before
doing any processing on the received packet. The motivation is to
make it harder for a malicious peer to disrupt the operation of pppd
by sending unsolicited EAP packets. Note that eap_success() already
has a check that the EAP client state is reasonable, and does nothing
(apart from possibly printing a debug message) if not.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
pppd/eap.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/pppd/eap.c b/pppd/eap.c
index 1b93db01aebd..082e95343120 100644
--- a/pppd/eap.c
+++ b/pppd/eap.c
@@ -1328,6 +1328,12 @@ int len;
int fd;
#endif /* USE_SRP */
+ /*
+ * Ignore requests if we're not open
+ */
+ if (esp->es_client.ea_state <= eapClosed)
+ return;
+
/*
* Note: we update es_client.ea_id *only if* a Response
* message is being generated. Otherwise, we leave it the
@@ -1736,6 +1742,12 @@ int len;
u_char dig[SHA_DIGESTSIZE];
#endif /* USE_SRP */
+ /*
+ * Ignore responses if we're not open
+ */
+ if (esp->es_server.ea_state <= eapClosed)
+ return;
+
if (esp->es_server.ea_id != id) {
dbglog("EAP: discarding Response %d; expected ID %d", id,
esp->es_server.ea_id);
@@ -2047,6 +2059,12 @@ u_char *inp;
int id;
int len;
{
+ /*
+ * Ignore failure messages if we're not open
+ */
+ if (esp->es_client.ea_state <= eapClosed)
+ return;
+
if (!eap_client_active(esp)) {
dbglog("EAP unexpected failure message in state %s (%d)",
eap_state_name(esp->es_client.ea_state),