[OE-core] [warrior][PATCH] libxml2: Fix CVE-2019-19956

[rahul chauhan]

Hi Armin,

Both patches are same. Since after submit the patch . I could not see my
patch at https://patchwork.openembedded.org/project/oe-core/patches/
so I was suspect that my patch submitted properly or not.

so I submitted this patch again.

I have one quick question.
After patch submission If I am not able to see my patch at
https://patchwork.openembedded.org/project/oe-core/patches/ , is there any
other way to check the patch submission status.

Thanks & Regards
Rahul Chauhan

On Tue, Feb 11, 2020 at 8:37 AM akuster808 <akuster808 at gmail.com> wrote:

>
>
> On 2/10/20 10:49 AM, Rahul Chauhan wrote:
> > Signed-off-by: Rahul Chauhan <rahulk at mvista.com>
> > ---
> >  .../libxml/libxml2/fix-CVE-2019-19956.patch        | 38
> ++++++++++++++++++++++
> >  meta/recipes-core/libxml/libxml2_2.9.8.bb          |  1 +
> >  2 files changed, 39 insertions(+)
> >  create mode 100644
> meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch
>
> What is the difference from the patch sent on the 6th? is this a version 2?
>
> - armin
> >
> > diff --git a/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch
> b/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch
> > new file mode 100644
> > index 0000000..43c3589
> > --- /dev/null
> > +++ b/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch
> > @@ -0,0 +1,38 @@
> > +From 3cd2b25ddb04740be2880cfd78d60038452228b1 Mon Sep 17 00:00:00 2001
> > +From: Zhipeng Xie <xiezhipeng1 at huawei.com>
> > +Date: Wed, 7 Aug 2019 17:39:17 +0800
> > +Subject: [PATCH] Fix memory leak in xmlParseBalancedChunkMemoryRecover
> > +
> > +When doc is NULL, namespace created in xmlTreeEnsureXMLDecl
> > +is bind to newDoc->oldNs, in this case, set newDoc->oldNs to
> > +NULL and free newDoc will cause a memory leak.
> > +
> > +Found with libFuzzer.
> > +
> > +Closes #82.
> > +
> > +Upstream-Status: Backport [
> https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549
> ]
> > +CVE: CVE-2019-19956
> > +
> > +Signed-off-by: Rahul Chauhan <rahulk at mvista.com>
> > +---
> > + parser.c | 3 ++-
> > + 1 file changed, 2 insertions(+), 1 deletion(-)
> > +
> > +diff --git a/parser.c b/parser.c
> > +index b7ecd65..491f5c9 100644
> > +--- a/parser.c
> > ++++ b/parser.c
> > +@@ -13899,7 +13899,8 @@ xmlParseBalancedChunkMemoryRecover(xmlDocPtr
> doc, xmlSAXHandlerPtr sax,
> > +     xmlFreeParserCtxt(ctxt);
> > +     newDoc->intSubset = NULL;
> > +     newDoc->extSubset = NULL;
> > +-    newDoc->oldNs = NULL;
> > ++    if(doc != NULL)
> > ++    newDoc->oldNs = NULL;
> > +     xmlFreeDoc(newDoc);
> > +
> > +     return(ret);
> > +--
> > +2.7.4
> > +
> > diff --git a/meta/recipes-core/libxml/libxml2_2.9.8.bb
> b/meta/recipes-core/libxml/libxml2_2.9.8.bb
> > index 62643bc..67c2d4f 100644
> > --- a/meta/recipes-core/libxml/libxml2_2.9.8.bb
> > +++ b/meta/recipes-core/libxml/libxml2_2.9.8.bb
> > @@ -23,6 +23,7 @@ SRC_URI = "
> http://www.xmlsoft.org/sources/libxml2-${PV}.tar.gz;name=libtar \
> >             file://fix-CVE-2017-8872.patch \
> >             file://fix-CVE-2018-14404.patch \
> >             file://0001-Fix-infinite-loop-in-LZMA-decompression.patch \
> > +           file://fix-CVE-2019-19956.patch \
> >             "
> >
> >  SRC_URI[libtar.md5sum] = "b786e353e2aa1b872d70d5d1ca0c740d"
>
>
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