[SCM] Samba Shared Repository - branch v4-1-test updated

Karolin Seeger kseeger at samba.org
Mon Jun 23 03:24:01 MDT 2014


The branch, v4-1-test has been updated
       via  3390f57 VERSION: Bump version up to 4.1.10.
       via  dffc7ba Merge tag 'samba-4.1.9' into v4-1-test
       via  42e655f VERSION: Disable git snapshot for the 4.1.8 release.
       via  9842dc8 WHATSNEW: Add release notes for Samba 4.1.9.
       via  a88baed s3: smbd - fix processing of packets with invalid DOS charset conversions.
       via  a04875b s3: nmbd: Fix bug 10633 - nmbd denial of service
       via  33f37c5 VERSION: Bump version number up to 4.1.9...
      from  5663c4a winbindd: Ensure we do not look at rid_array before checking if it was returned

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v4-1-test


- Log -----------------------------------------------------------------
commit 3390f5702296c4411c9c955565f23cbfb5896a71
Author: Karolin Seeger <kseeger at samba.org>
Date:   Mon Jun 23 11:23:22 2014 +0200

    VERSION: Bump version up to 4.1.10.
    
    Signed-off-by: Karolin Seeger <kseeger at samba.org>

commit dffc7bab36dda01a9c8f6d6d34b9710f5d83aa1d
Merge: 5663c4ac8b7f2c1fbd59177423d35cf8ad31dd82 42e655f1c9fd4c5b22a5b9d3a228e0a90432952f
Author: Karolin Seeger <kseeger at samba.org>
Date:   Mon Jun 23 11:22:47 2014 +0200

    Merge tag 'samba-4.1.9' into v4-1-test
    
    samba: tag release samba-4.1.9

commit 42e655f1c9fd4c5b22a5b9d3a228e0a90432952f
Author: Karolin Seeger <kseeger at samba.org>
Date:   Sun Jun 22 16:42:41 2014 +0200

    VERSION: Disable git snapshot for the 4.1.8 release.
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=10633
    CVE-2014-0244: nmbd denial of service
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=10654
    CVE-2014-3493: Segmentation fault in smbd_marshall_dir_entry()'s
    SMB_FIND_FILE_UNIX handler because push_ascii() has returned(uint32_t)-1
    via srvstr_push(), incrementing p by 4GB
    
    Signed-off-by: Karolin Seeger <kseeger at samba.org>

-----------------------------------------------------------------------

Summary of changes:
 VERSION                 |    2 +-
 WHATSNEW.txt            |   61 +++++++++++++++++++++++++++++++++++++++++++++-
 source3/lib/charcnv.c   |   26 +++++++++++++-------
 source3/lib/system.c    |    7 +----
 source3/libsmb/clirap.c |    4 +-
 source3/smbd/lanman.c   |    4 +-
 6 files changed, 83 insertions(+), 21 deletions(-)


Changeset truncated at 500 lines:

diff --git a/VERSION b/VERSION
index 1faf36b..5c0bf06 100644
--- a/VERSION
+++ b/VERSION
@@ -25,7 +25,7 @@
 ########################################################
 SAMBA_VERSION_MAJOR=4
 SAMBA_VERSION_MINOR=1
-SAMBA_VERSION_RELEASE=9
+SAMBA_VERSION_RELEASE=10
 
 ########################################################
 # If a official release has a serious bug              #
diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index fc93ef5..7ae1ce9 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -1,4 +1,61 @@
                    =============================
+                   Release Notes for Samba 4.1.9
+                           June 23, 2014
+                   =============================
+
+
+This is a security release in order to address
+CVE-2014-0244 (Denial of service - CPU loop) and
+CVE-2014-3493 (Denial of service - Server crash/memory corruption).
+
+o  CVE-2014-0244:
+   All current released versions of Samba are vulnerable to a denial of
+   service on the nmbd NetBIOS name services daemon. A malformed packet
+   can cause the nmbd server to loop the CPU and prevent any further
+   NetBIOS name service.
+
+   This flaw is not exploitable beyond causing the code to loop expending
+   CPU resources.
+
+o  CVE-2014-3493:
+   All current released versions of Samba are affected by a denial of service
+   crash involving overwriting memory on an authenticated connection to the
+   smbd file server.
+
+
+Changes since 4.1.8:
+--------------------
+
+o   Jeremy Allison <jra at samba.org>
+    * BUG 10633: CVE-2014-0244: Fix nmbd denial of service.
+    * BUG 10654: CVE-2014-3493: Fix segmentation fault in
+      smbd_marshall_dir_entry()'s SMB_FIND_FILE_UNIX handler.
+
+
+#######################################
+Reporting bugs & Development Discussion
+#######################################
+
+Please discuss this release on the samba-technical mailing list or by
+joining the #samba-technical IRC channel on irc.freenode.net.
+
+If you do report problems then please try to send high quality
+feedback. If you don't provide vital information to help us track down
+the problem then you will probably be ignored.  All bug reports should
+be filed under the Samba 4.1 product in the project's Bugzilla
+database (https://bugzilla.samba.org/).
+
+
+======================================================================
+== Our Code, Our Bugs, Our Responsibility.
+== The Samba Team
+======================================================================
+
+
+Release notes for older releases follow:
+----------------------------------------
+
+                   =============================
                    Release Notes for Samba 4.1.8
                            June 3, 2014
                    =============================
@@ -112,8 +169,8 @@ database (https://bugzilla.samba.org/).
 ======================================================================
 
 
-Release notes for older releases follow:
-----------------------------------------
+----------------------------------------------------------------------
+
 
                    =============================
                    Release Notes for Samba 4.1.7
diff --git a/source3/lib/charcnv.c b/source3/lib/charcnv.c
index 71d2c3a..2189812 100644
--- a/source3/lib/charcnv.c
+++ b/source3/lib/charcnv.c
@@ -46,9 +46,9 @@ void gfree_charcnv(void)
  **/
 size_t push_ascii(void *dest, const char *src, size_t dest_len, int flags)
 {
-	size_t src_len = strlen(src);
+	size_t src_len = 0;
 	char *tmpbuf = NULL;
-	size_t size;
+	size_t size = 0;
 	bool ret;
 
 	/* No longer allow a length of -1. */
@@ -62,24 +62,32 @@ size_t push_ascii(void *dest, const char *src, size_t dest_len, int flags)
 			smb_panic("malloc fail");
 		}
 		if (!strupper_m(tmpbuf)) {
+			if ((flags & (STR_TERMINATE|STR_TERMINATE_ASCII)) &&
+					dest &&
+					dest_len > 0) {
+				*(char *)dest = 0;
+			}
 			SAFE_FREE(tmpbuf);
-			return (size_t)-1;
+			return 0;
 		}
 		src = tmpbuf;
 	}
 
+	src_len = strlen(src);
 	if (flags & (STR_TERMINATE | STR_TERMINATE_ASCII)) {
 		src_len++;
 	}
 
 	ret = convert_string(CH_UNIX, CH_DOS, src, src_len, dest, dest_len, &size);
-	if (ret == false &&
-			(flags & (STR_TERMINATE | STR_TERMINATE_ASCII))
-			&& dest_len > 0) {
-		((char *)dest)[0] = '\0';
-	}
 	SAFE_FREE(tmpbuf);
-	return ret ? size : (size_t)-1;
+	if (ret == false) {
+		if ((flags & (STR_TERMINATE | STR_TERMINATE_ASCII)) &&
+				dest_len > 0) {
+			((char *)dest)[0] = '\0';
+		}
+		return 0;
+	}
+	return size;
 }
 
 /********************************************************************
diff --git a/source3/lib/system.c b/source3/lib/system.c
index 8252e4f..4f38597 100644
--- a/source3/lib/system.c
+++ b/source3/lib/system.c
@@ -169,6 +169,7 @@ ssize_t sys_send(int s, const void *msg, size_t len, int flags)
 
 /*******************************************************************
 A recvfrom wrapper that will deal with EINTR.
+NB. As used with non-blocking sockets, return on EAGAIN/EWOULDBLOCK
 ********************************************************************/
 
 ssize_t sys_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen)
@@ -177,11 +178,7 @@ ssize_t sys_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *f
 
 	do {
 		ret = recvfrom(s, buf, len, flags, from, fromlen);
-#if defined(EWOULDBLOCK)
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK));
-#else
-	} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
-#endif
+	} while (ret == -1 && (errno == EINTR));
 	return ret;
 }
 
diff --git a/source3/libsmb/clirap.c b/source3/libsmb/clirap.c
index 036919f..64e3767 100644
--- a/source3/libsmb/clirap.c
+++ b/source3/libsmb/clirap.c
@@ -327,7 +327,7 @@ bool cli_NetServerEnum(struct cli_state *cli, char *workgroup, uint32 stype,
 				sizeof(param) - PTR_DIFF(p,param) - 1,
 				STR_TERMINATE|STR_UPPER);
 
-		if (len == (size_t)-1) {
+		if (len == 0) {
 			SAFE_FREE(last_entry);
 			return false;
 		}
@@ -339,7 +339,7 @@ bool cli_NetServerEnum(struct cli_state *cli, char *workgroup, uint32 stype,
 					sizeof(param) - PTR_DIFF(p,param) - 1,
 					STR_TERMINATE);
 
-			if (len == (size_t)-1) {
+			if (len == 0) {
 				SAFE_FREE(last_entry);
 				return false;
 			}
diff --git a/source3/smbd/lanman.c b/source3/smbd/lanman.c
index 1b734a7..0a0ab6b 100644
--- a/source3/smbd/lanman.c
+++ b/source3/smbd/lanman.c
@@ -128,7 +128,7 @@ static int CopyExpanded(connection_struct *conn,
 		return 0;
 	}
 	l = push_ascii(*dst,buf,*p_space_remaining, STR_TERMINATE);
-	if (l == -1) {
+	if (l == 0) {
 		return 0;
 	}
 	(*dst) += l;
@@ -143,7 +143,7 @@ static int CopyAndAdvance(char **dst, char *src, int *n)
 		return 0;
 	}
 	l = push_ascii(*dst,src,*n, STR_TERMINATE);
-	if (l == -1) {
+	if (l == 0) {
 		return 0;
 	}
 	(*dst) += l;


-- 
Samba Shared Repository


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