automatic import of glibcopeneuler22.03_LTS_SP4openeuler22.03_LTS_SP3openeuler20.03

1 files changed, 125 insertions, 0 deletions

diff --git a/CVE-2022-23218-Buffer-overflow-in-sunrpc-svcunix_cre.patch b/CVE-2022-23218-Buffer-overflow-in-sunrpc-svcunix_cre.patch
new file mode 100644
index 0000000..401059d
--- /dev/null
+++ b/CVE-2022-23218-Buffer-overflow-in-sunrpc-svcunix_cre.patch
@@ -0,0 +1,125 @@
+From f545ad4928fa1f27a3075265182b38a4f939a5f7 Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Mon, 17 Jan 2022 10:21:34 +0100
+Subject: [PATCH] CVE-2022-23218: Buffer overflow in sunrpc svcunix_create (bug
+ 28768)
+
+The sunrpc function svcunix_create suffers from a stack-based buffer
+overflow with overlong pathname arguments.
+
+Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
+---
+ NEWS                  |  3 +++
+ sunrpc/Makefile       |  2 +-
+ sunrpc/svc_unix.c     | 11 ++++-------
+ sunrpc/tst-bug28768.c | 42 ++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 50 insertions(+), 8 deletions(-)
+ create mode 100644 sunrpc/tst-bug28768.c
+
+diff --git a/NEWS b/NEWS
+index 38a9ddb..38802f0 100644
+--- a/NEWS
++++ b/NEWS
+@@ -14,6 +14,9 @@ Security related changes:
+   legacy function could result in a stack-based buffer overflow when
+   using the "unix" protocol.  Reported by Martin Sebor.
+ 
++  CVE-2022-23218: Passing an overlong file name to the svcunix_create
++  legacy function could result in a stack-based buffer overflow.
++
+ The following bugs are resolved with this release:
+ 
+   [22542] CVE-2022-23219: Buffer overflow in sunrpc clnt_create for "unix"
+diff --git a/sunrpc/Makefile b/sunrpc/Makefile
+index 183ef3d..a79a719 100644
+--- a/sunrpc/Makefile
++++ b/sunrpc/Makefile
+@@ -65,7 +65,7 @@ shared-only-routines = $(routines)
+ endif
+ 
+ tests = tst-xdrmem tst-xdrmem2 test-rpcent tst-udp-error tst-udp-timeout \
+-  tst-udp-nonblocking tst-bug22542
++  tst-udp-nonblocking tst-bug22542 tst-bug28768
+ 
+ xtests := tst-getmyaddr
+ 
+diff --git a/sunrpc/svc_unix.c b/sunrpc/svc_unix.c
+index f2280b4..67177a2 100644
+--- a/sunrpc/svc_unix.c
++++ b/sunrpc/svc_unix.c
+@@ -154,7 +154,10 @@ svcunix_create (int sock, u_int sendsize, u_int recvsize, char *path)
+   SVCXPRT *xprt;
+   struct unix_rendezvous *r;
+   struct sockaddr_un addr;
+-  socklen_t len = sizeof (struct sockaddr_in);
++  socklen_t len = sizeof (addr);
++
++  if (__sockaddr_un_set (&addr, path) < 0)
++    return NULL;
+ 
+   if (sock == RPC_ANYSOCK)
+     {
+@@ -165,12 +168,6 @@ svcunix_create (int sock, u_int sendsize, u_int recvsize, char *path)
+ 	}
+       madesock = TRUE;
+     }
+-  memset (&addr, '\0', sizeof (addr));
+-  addr.sun_family = AF_UNIX;
+-  len = strlen (path) + 1;
+-  memcpy (addr.sun_path, path, len);
+-  len += sizeof (addr.sun_family);
+-
+   __bind (sock, (struct sockaddr *) &addr, len);
+ 
+   if (__getsockname (sock, (struct sockaddr *) &addr, &len) != 0
+diff --git a/sunrpc/tst-bug28768.c b/sunrpc/tst-bug28768.c
+new file mode 100644
+index 0000000..35a4b7b
+--- /dev/null
++++ b/sunrpc/tst-bug28768.c
+@@ -0,0 +1,42 @@
++/* Test to verify that long path is rejected by svcunix_create (bug 28768).
++   Copyright (C) 2022 Free Software Foundation, Inc.
++   This file is part of the GNU C Library.
++
++   The GNU C Library is free software; you can redistribute it and/or
++   modify it under the terms of the GNU Lesser General Public
++   License as published by the Free Software Foundation; either
++   version 2.1 of the License, or (at your option) any later version.
++
++   The GNU C Library is distributed in the hope that it will be useful,
++   but WITHOUT ANY WARRANTY; without even the implied warranty of
++   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++   Lesser General Public License for more details.
++
++   You should have received a copy of the GNU Lesser General Public
++   License along with the GNU C Library; if not, see
++   <http://www.gnu.org/licenses/>.  */
++
++#include <errno.h>
++#include <rpc/svc.h>
++#include <shlib-compat.h>
++#include <string.h>
++#include <support/check.h>
++
++/* svcunix_create does not have a default version in linkobj/libc.so.  */
++compat_symbol_reference (libc, svcunix_create, svcunix_create, GLIBC_2_1);
++
++static int
++do_test (void)
++{
++  char pathname[109];
++  memset (pathname, 'x', sizeof (pathname));
++  pathname[sizeof (pathname) - 1] = '\0';
++
++  errno = 0;
++  TEST_VERIFY (svcunix_create (RPC_ANYSOCK, 4096, 4096, pathname) == NULL);
++  TEST_COMPARE (errno, EINVAL);
++
++  return 0;
++}
++
++#include <support/test-driver.c>
+-- 
+1.8.3.1
+