Patchwork libxml2 CVE-2012-2871

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Submitter Li Wang
Date Dec. 13, 2012, 5:54 a.m.
Message ID <1355378061-7514-1-git-send-email-li.wang@windriver.com>
Download mbox | patch
Permalink /patch/40877/
State Accepted
Commit bc601f96f34ad17a87f599b58e502ec1b2c13fa3
Headers show

Comments

Li Wang - Dec. 13, 2012, 5:54 a.m.
the patch come from:
http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
/include/libxml/tree.h?r1=56276&r2=149930

libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
does not properly support a cast of an unspecified variable during handling
of XSL transforms, which allows remote attackers to cause a denial of service
or possibly have unknown other impact via a crafted document, related to the
_xmlNs data structure in include/libxml/tree.h.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871

[YOCTO #3580]
[ CQID: WIND00376779 ]
Upstream-Status: Pending

Signed-off-by: Li Wang <li.wang@windriver.com>
---
 .../libxml/libxml2/libxml2-CVE-2012-2871.patch     | 34 ++++++++++++++++++++++
 meta/recipes-core/libxml/libxml2_2.9.0.bb          |  5 +++-
 2 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
Saul Wold - Dec. 17, 2012, 6:09 p.m.
Li,

All your recent CVE patches are missing Upsteam-Status: Backport in the 
patch header, please add that and send V2's!

Thanks
	Sau!


On 12/12/2012 09:54 PM, Li Wang wrote:
> the patch come from:
> http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
> /include/libxml/tree.h?r1=56276&r2=149930
>
> libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
> does not properly support a cast of an unspecified variable during handling
> of XSL transforms, which allows remote attackers to cause a denial of service
> or possibly have unknown other impact via a crafted document, related to the
> _xmlNs data structure in include/libxml/tree.h.
>
> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
>
> [YOCTO #3580]
> [ CQID: WIND00376779 ]
> Upstream-Status: Pending
>
> Signed-off-by: Li Wang <li.wang@windriver.com>
> ---
>   .../libxml/libxml2/libxml2-CVE-2012-2871.patch     | 34 ++++++++++++++++++++++
>   meta/recipes-core/libxml/libxml2_2.9.0.bb          |  5 +++-
>   2 files changed, 38 insertions(+), 1 deletion(-)
>   create mode 100644 meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
>
> diff --git a/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
> new file mode 100644
> index 0000000..3c66a9c
> --- /dev/null
> +++ b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
> @@ -0,0 +1,34 @@
> +libxml2 CVE-2012-2871
> +
> +the patch come from:
> +http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
> +/include/libxml/tree.h?r1=56276&r2=149930
> +
> +libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
> +does not properly support a cast of an unspecified variable during handling
> +of XSL transforms, which allows remote attackers to cause a denial of service
> +or possibly have unknown other impact via a crafted document, related to the
> +_xmlNs data structure in include/libxml/tree.h.
> +
> +http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
> +
> +Signed-off-by: Li Wang <li.wang@windriver.com>
> +---
> + include/libxml/tree.h |    1 +
> + 1 files changed, 1 insertions(+), 0 deletions(-)
> +
> +diff --git a/include/libxml/tree.h b/include/libxml/tree.h
> +index b733589..5422dda 100644
> +--- a/include/libxml/tree.h
> ++++ b/include/libxml/tree.h
> +@@ -351,6 +351,7 @@ struct _xmlNs {
> +     struct _xmlNs  *next;	/* next Ns link for this node  */
> +     xmlNsType      type;	/* global or local */
> +     const xmlChar *href;	/* URL for the namespace */
> ++    const char *dummy_children;	/* lines up with node->children */
> +     const xmlChar *prefix;	/* prefix for the namespace */
> +     void           *_private;   /* application data */
> +     struct _xmlDoc *context;		/* normally an xmlDoc */
> +--
> +1.7.0.5
> +
> diff --git a/meta/recipes-core/libxml/libxml2_2.9.0.bb b/meta/recipes-core/libxml/libxml2_2.9.0.bb
> index a022ae9..ecc19fb 100644
> --- a/meta/recipes-core/libxml/libxml2_2.9.0.bb
> +++ b/meta/recipes-core/libxml/libxml2_2.9.0.bb
> @@ -1,6 +1,9 @@
>   require libxml2.inc
>
> -PR = "${INC_PR}.0"
> +PR = "${INC_PR}.1"
>
>   SRC_URI[md5sum] = "5b9bebf4f5d2200ae2c4efe8fa6103f7"
>   SRC_URI[sha256sum] = "ad25d91958b7212abdc12b9611cfb4dc4e5cddb6d1e9891532f48aacee422b82"
> +
> +SRC_URI += "file://libxml2-CVE-2012-2871.patch \
> +	   "
>
Saul Wold - Dec. 17, 2012, 6:20 p.m.
On 12/17/2012 10:09 AM, Saul Wold wrote:
>
> Li,
>
> All your recent CVE patches are missing Upsteam-Status: Backport in the
> patch header, please add that and send V2's!
>
You will need to just send patch header updates since these patches are 
pulled into Master already

> Thanks
>      Sau!
>
>
> On 12/12/2012 09:54 PM, Li Wang wrote:
>> the patch come from:
>> http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
>> /include/libxml/tree.h?r1=56276&r2=149930
>>
>> libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before
>> 21.0.1180.89,
>> does not properly support a cast of an unspecified variable during
>> handling
>> of XSL transforms, which allows remote attackers to cause a denial of
>> service
>> or possibly have unknown other impact via a crafted document, related
>> to the
>> _xmlNs data structure in include/libxml/tree.h.
>>
>> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
>>
>> [YOCTO #3580]
>> [ CQID: WIND00376779 ]
>> Upstream-Status: Pending
>>
>> Signed-off-by: Li Wang <li.wang@windriver.com>
>> ---
>>   .../libxml/libxml2/libxml2-CVE-2012-2871.patch     | 34
>> ++++++++++++++++++++++
>>   meta/recipes-core/libxml/libxml2_2.9.0.bb          |  5 +++-
>>   2 files changed, 38 insertions(+), 1 deletion(-)
>>   create mode 100644
>> meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
>>
>> diff --git
>> a/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
>> b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
>> new file mode 100644
>> index 0000000..3c66a9c
>> --- /dev/null
>> +++ b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
>> @@ -0,0 +1,34 @@
>> +libxml2 CVE-2012-2871
>> +
>> +the patch come from:
>> +http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
>> +/include/libxml/tree.h?r1=56276&r2=149930
>> +
>> +libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before
>> 21.0.1180.89,
>> +does not properly support a cast of an unspecified variable during
>> handling
>> +of XSL transforms, which allows remote attackers to cause a denial of
>> service
>> +or possibly have unknown other impact via a crafted document, related
>> to the
>> +_xmlNs data structure in include/libxml/tree.h.
>> +
>> +http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
>> +
>> +Signed-off-by: Li Wang <li.wang@windriver.com>
>> +---
>> + include/libxml/tree.h |    1 +
>> + 1 files changed, 1 insertions(+), 0 deletions(-)
>> +
>> +diff --git a/include/libxml/tree.h b/include/libxml/tree.h
>> +index b733589..5422dda 100644
>> +--- a/include/libxml/tree.h
>> ++++ b/include/libxml/tree.h
>> +@@ -351,6 +351,7 @@ struct _xmlNs {
>> +     struct _xmlNs  *next;    /* next Ns link for this node  */
>> +     xmlNsType      type;    /* global or local */
>> +     const xmlChar *href;    /* URL for the namespace */
>> ++    const char *dummy_children;    /* lines up with node->children */
>> +     const xmlChar *prefix;    /* prefix for the namespace */
>> +     void           *_private;   /* application data */
>> +     struct _xmlDoc *context;        /* normally an xmlDoc */
>> +--
>> +1.7.0.5
>> +
>> diff --git a/meta/recipes-core/libxml/libxml2_2.9.0.bb
>> b/meta/recipes-core/libxml/libxml2_2.9.0.bb
>> index a022ae9..ecc19fb 100644
>> --- a/meta/recipes-core/libxml/libxml2_2.9.0.bb
>> +++ b/meta/recipes-core/libxml/libxml2_2.9.0.bb
>> @@ -1,6 +1,9 @@
>>   require libxml2.inc
>>
>> -PR = "${INC_PR}.0"
>> +PR = "${INC_PR}.1"
>>
>>   SRC_URI[md5sum] = "5b9bebf4f5d2200ae2c4efe8fa6103f7"
>>   SRC_URI[sha256sum] =
>> "ad25d91958b7212abdc12b9611cfb4dc4e5cddb6d1e9891532f48aacee422b82"
>> +
>> +SRC_URI += "file://libxml2-CVE-2012-2871.patch \
>> +       "
>>
>
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>
>

Patch

diff --git a/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
new file mode 100644
index 0000000..3c66a9c
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/libxml2-CVE-2012-2871.patch
@@ -0,0 +1,34 @@ 
+libxml2 CVE-2012-2871
+
+the patch come from:
+http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libxml/src \
+/include/libxml/tree.h?r1=56276&r2=149930
+
+libxml2 2.9.0-rc1 and earlier, as used in Google Chrome before 21.0.1180.89,
+does not properly support a cast of an unspecified variable during handling
+of XSL transforms, which allows remote attackers to cause a denial of service
+or possibly have unknown other impact via a crafted document, related to the
+_xmlNs data structure in include/libxml/tree.h.
+
+http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2871
+
+Signed-off-by: Li Wang <li.wang@windriver.com>
+---
+ include/libxml/tree.h |    1 +
+ 1 files changed, 1 insertions(+), 0 deletions(-)
+
+diff --git a/include/libxml/tree.h b/include/libxml/tree.h
+index b733589..5422dda 100644
+--- a/include/libxml/tree.h
++++ b/include/libxml/tree.h
+@@ -351,6 +351,7 @@ struct _xmlNs {
+     struct _xmlNs  *next;	/* next Ns link for this node  */
+     xmlNsType      type;	/* global or local */
+     const xmlChar *href;	/* URL for the namespace */
++    const char *dummy_children;	/* lines up with node->children */
+     const xmlChar *prefix;	/* prefix for the namespace */
+     void           *_private;   /* application data */
+     struct _xmlDoc *context;		/* normally an xmlDoc */
+-- 
+1.7.0.5
+
diff --git a/meta/recipes-core/libxml/libxml2_2.9.0.bb b/meta/recipes-core/libxml/libxml2_2.9.0.bb
index a022ae9..ecc19fb 100644
--- a/meta/recipes-core/libxml/libxml2_2.9.0.bb
+++ b/meta/recipes-core/libxml/libxml2_2.9.0.bb
@@ -1,6 +1,9 @@ 
 require libxml2.inc
 
-PR = "${INC_PR}.0"
+PR = "${INC_PR}.1"
 
 SRC_URI[md5sum] = "5b9bebf4f5d2200ae2c4efe8fa6103f7"
 SRC_URI[sha256sum] = "ad25d91958b7212abdc12b9611cfb4dc4e5cddb6d1e9891532f48aacee422b82"
+
+SRC_URI += "file://libxml2-CVE-2012-2871.patch \
+	   "