[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Bug#896940: marked as done (stretch-pu: package xerces-c/3.1.4+debian-2)

Your message dated Sat, 14 Jul 2018 11:21:20 +0100
with message-id <1531563680.2095.30.camel@adam-barratt.org.uk>
and subject line Closing bugs for updates included in 9.5
has caused the Debian Bug report #896940,
regarding stretch-pu: package xerces-c/3.1.4+debian-2
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
896940: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896940
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: release.debian.org
Severity: normal
Tags: stretch
User: release.debian.org@packages.debian.org
Usertags: pu

I would like to update xerces-c in a future point release.  This update
will fix two issues:

  * Fix CVE-2017-12627: Alberto Garcia, Francisco Oca and Suleman Ali of
    Offensive Research discovered that the Xerces-C XML parser mishandles
    certain kinds of external DTD references, resulting in dereference of a
    NULL pointer while processing the path to the DTD. The bug allows for a
    denial of service attack in applications that allow DTD processing and do
    not prevent external DTD usage, and could conceivably result in remote code
    execution.
  * Fix a regression that forced gcc to use SSE2, even on platforms that do not
    support it (e.g., i386).  This caused program crashes due to invalid CPU
    instructions.


The CVE was deemed by the security team to not be critical enough for a
DSA, but they suggested that it might be included in a point release.

Both of these issues have been fixed in unstable, and I have attached a
debdiff that reflects the desired changes.

Regards,
Bill

-- System Information:
Debian Release: 9.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

diff -Nru xerces-c-3.1.4+debian/debian/changelog xerces-c-3.1.4+debian/debian/changelog
--- xerces-c-3.1.4+debian/debian/changelog	2016-12-16 06:52:57.000000000 -0500
+++ xerces-c-3.1.4+debian/debian/changelog	2018-04-26 00:35:59.000000000 -0400
@@ -1,3 +1,18 @@
+xerces-c (3.1.4+debian-2+deb9u1) stretch; urgency=medium
+
+  * Fix CVE-2017-12627: Alberto Garcia, Francisco Oca and Suleman Ali of
+    Offensive Research discovered that the Xerces-C XML parser mishandles
+    certain kinds of external DTD references, resulting in dereference of a
+    NULL pointer while processing the path to the DTD. The bug allows for a
+    denial of service attack in applications that allow DTD processing and do
+    not prevent external DTD usage, and could conceivably result in remote code
+    execution.
+  * Fix a regression that forced gcc to use SSE2, even on platforms that do not
+    support it (e.g., i386).  This caused program crashes due to invalid CPU
+    instructions.
+
+ -- William Blough <devel@blough.us>  Thu, 26 Apr 2018 00:35:59 -0400
+
 xerces-c (3.1.4+debian-2) unstable; urgency=medium
 
   * Fix AC_LANG_SOURCE warnings.
diff -Nru xerces-c-3.1.4+debian/debian/patches/CVE-2017-12627.patch xerces-c-3.1.4+debian/debian/patches/CVE-2017-12627.patch
--- xerces-c-3.1.4+debian/debian/patches/CVE-2017-12627.patch	1969-12-31 19:00:00.000000000 -0500
+++ xerces-c-3.1.4+debian/debian/patches/CVE-2017-12627.patch	2018-04-26 00:35:59.000000000 -0400
@@ -0,0 +1,26 @@
+From: Markus Koschany <apo@debian.org>
+Date: Thu, 29 Mar 2018 20:58:48 +0200
+Subject: CVE-2017-12627
+
+Origin: https://svn.apache.org/viewvc?view=revision&revision=1819998
+Upstream-Advisory: https://xerces.apache.org/xerces-c/secadv/CVE-2017-12627.txt
+---
+ src/xercesc/util/PlatformUtils.cpp | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/xercesc/util/PlatformUtils.cpp b/src/xercesc/util/PlatformUtils.cpp
+index eee1dc5..39c71ac 100644
+--- a/src/xercesc/util/PlatformUtils.cpp
++++ b/src/xercesc/util/PlatformUtils.cpp
+@@ -920,7 +920,10 @@ XMLCh* XMLPlatformUtils::weavePaths(const XMLCh* const    basePath
+ 
+     XMLString::subString(tmpBuf, basePath, 0, (basePtr - basePath + 1), manager);
+     tmpBuf[basePtr - basePath + 1] = 0;
+-    XMLString::catString(tmpBuf, relativePath);
++    if (relativePath)
++    {
++        XMLString::catString(tmpBuf, relativePath);
++    }
+ 
+     removeDotSlash(tmpBuf, manager);
+ 
diff -Nru xerces-c-3.1.4+debian/debian/patches/series xerces-c-3.1.4+debian/debian/patches/series
--- xerces-c-3.1.4+debian/debian/patches/series	2016-12-16 06:52:57.000000000 -0500
+++ xerces-c-3.1.4+debian/debian/patches/series	2018-04-26 00:35:59.000000000 -0400
@@ -1,3 +1,4 @@
 psviwriter_strrchr_fix
 fix_fprintf_warnings.diff
 fix_ac_lang_source_warnings
+CVE-2017-12627.patch
diff -Nru xerces-c-3.1.4+debian/debian/rules xerces-c-3.1.4+debian/debian/rules
--- xerces-c-3.1.4+debian/debian/rules	2016-12-16 06:52:57.000000000 -0500
+++ xerces-c-3.1.4+debian/debian/rules	2018-04-26 00:35:59.000000000 -0400
@@ -15,7 +15,10 @@
 	dh $@ --with autoreconf
 
 override_dh_auto_configure:
-	dh_auto_configure -- --disable-pretty-make --enable-netaccessor-curl
+	dh_auto_configure -- --disable-pretty-make --enable-netaccessor-curl --disable-sse2
+	# Note: This disables explicit passing of -msse2 to gcc.  It does not
+	# actually disable sse2 extensions for platforms such as x86_64
+	# (amd64) which enable sse2 extensions by default.
 
 override_dh_compress:
 	dh_compress -plibxerces-c-dev -Xexamples

--- End Message ---
--- Begin Message --- 
Version: 9.5

Hi,

The update referenced by each of these bugs was included in this
morning's stretch point release.

Regards,

Adam

--- End Message ---
Reply to: