Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

["Rahul Taya" <Rahul.Taya@kpit.com>]

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Hi Martin,

Is there any update for nghttp2 CVE-2020-11080  fix that you have sent earlier ?
https://git.openembedded.org/meta-openembedded-contrib/commit/?h=jansa/dunfell&id=3a3a6c4e42d0b1c22d4e0d9cfd42d3e119972ce0<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.openembedded.org%2Fmeta-openembedded-contrib%2Fcommit%2F%3Fh%3Djansa%2Fdunfell%26id%3D3a3a6c4e42d0b1c22d4e0d9cfd42d3e119972ce0&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614843758%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qNySlF2ouK6IiAvo2J68imnOZRB66RjwjCGhTYCoAnw%3D&reserved=0>

I think it's still not merged.

Thanks and Regards,
Rahul Taya
________________________________
From: Martin Jansa <martin.jansa@gmail.com>
Sent: Wednesday, March 3, 2021 9:22 PM
To: Rahul Taya <Rahul.Taya@kpit.com>
Cc: openembedded-devel <openembedded-devel@lists.openembedded.org>; Harpritkaur Bhandari <Harpritkaur.Bhandari@kpit.com>; Nisha Parrakat <Nisha.Parrakat@kpit.com>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

On Wed, Mar 3, 2021 at 4:26 PM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
Hi Martin,

No i run devtool modify python only once and it applies the patch in source file.

Then you had to run "git am" manually in this directory and never finish? you need to finish it or all git am --abort when you give up.

What i’ m not getting is how i generate a patch after this.
 By taking git diff b/w the original source file and the patched file or what?

either "git format-patch" when you have applied the patch manually or "devtool finish --force-patch-refresh ..." will call "git format-patch" for you when devtool was able to apply the patch with just a fuzz.

Anyway you're still expected to review the changes in regenerated patch to confirm that it still does what it was supposed to do.

Yes martin you applied my patch in master-next which is also required for dunfell.As i have other patches too i.e CVE-2019-20907 for python that i have sent and nghttp2 patch that’s why i thought to fix their warnings also using devtool and then send to you for applying.

I've already applied CVE-2019-20907 as well and fixed the patch-fuzz there, will push it to master-next as well. I'll push it to gatesgarth-next and dunfell-next as well.

And for nghttp2 patch I've sent the fix as well, see:
https://git.openembedded.org/meta-openembedded-contrib/commit/?h=jansa/dunfell&id=3a3a6c4e42d0b1c22d4e0d9cfd42d3e119972ce0<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.openembedded.org%2Fmeta-openembedded-contrib%2Fcommit%2F%3Fh%3Djansa%2Fdunfell%26id%3D3a3a6c4e42d0b1c22d4e0d9cfd42d3e119972ce0&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614843758%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qNySlF2ouK6IiAvo2J68imnOZRB66RjwjCGhTYCoAnw%3D&reserved=0>
which I've sent when your version of the patch was in dunfell-next, see:
https://lists.openembedded.org/g/openembedded-devel/message/89628<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openembedded.org%2Fg%2Fopenembedded-devel%2Fmessage%2F89628&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614843758%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dUbJ%2BoCGl7NtsJPluCH7LXWPAvlNWajSyDjZeXC3gjA%3D&reserved=0>

+oe-devel ML

From: Martin Jansa <martin.jansa@gmail.com<mailto:martin.jansa@gmail.com>>
Sent: Wednesday, March 3, 2021 8:03:12 PM
To: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
Cc: openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org> <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

Did you run "devtool modify python" twice? If the first call failed to apply patches you need to go into workspace/sources/python and finish applying it manually.

But as said in previous e-mails I've already updated your python patch to apply cleanly (and it's in meta-python2/master-next), so I'm not sure what you're trying to do now.

On Wed, Mar 3, 2021 at 2:51 PM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
Hi Martin,

Firstlty i run : devtool modify python

this command applied all the patches in the source code.
After this when i run :

         devtool finish --force-patch-refresh <recipe> <layer_path>

where recipe = python and layer path = /workspace/sources/python

i'm getting message:  workspace/sources/python appears to be in the middle of 'git am' or 'git apply' - please resolve this first

Can you please help why i'm getting this and how to resolve it ?

Thanks and Regards,
Rahul Taya
________________________________
From: openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org> <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>> on behalf of Martin Jansa via lists.openembedded.org<https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.openembedded.org%2F&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614853753%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fvYJtvQvNCvjys3z0icl%2Bg5BNhax0egcZWkemoHy1To%3D&reserved=0> <Martin.Jansa=gmail.com@lists.openembedded.org<mailto:gmail.com@lists.openembedded.org>>
Sent: Monday, March 1, 2021 8:16 PM
To: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
Cc: openembedded-devel <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

> Can you please tell me what i should do if a fuzz is detected while applying patch or i see some warning message ?

The QA warning/error message about patch-fuzz shows you how to easily resolve the fuzz with devtool.

If it doesn't apply at all (like that nghttp2 patch), then you need to apply it manually by resolving all conflicts and then refresh the patch file (I usually create a git repo in ${S} if it isn't there already from SRC_URI, then manually apply the failing patch and then git format-patch it).

On Mon, Mar 1, 2021 at 3:26 PM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
Hi Martin,

Yes i think you are right it can be possible that i overlooked or missed the warning.

Can you please tell me what i should do if a fuzz is detected while applying patch or i see some warning message ?


For nghttp patch please check attached screenshot this is the last message that i saw.
Can you tell me what next to do for that patch ?

Thanks and Regards,
Rahul Taya
________________________________
From: Martin Jansa <martin.jansa@gmail.com<mailto:martin.jansa@gmail.com>>
Sent: Thursday, February 25, 2021 10:33 PM
To: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
Cc: openembedded-devel <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

Hi Rahul,

you probably don't have patch-fuzz in ERROR_QA and overlooked the warning generated by this QA check which is by default only in WARN_QA.

Or you weren't testing it with master branch as the subject says it's for dunfell, but it the python version is the same in master and dunfell, so the warning should be triggered in both.

On Thu, Feb 25, 2021 at 5:19 PM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
Hi Martin,

I have tested my changes before sending to you or ML i don’t know why it is failing now at your side.

Thanks and Regards,
Rahul

Get Outlook for iOS<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Faka.ms%2Fo0ukef&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614853753%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=923piAM9LEXp054cWFKRMfu3HGdFb9RX5UVcchwZJWk%3D&reserved=0>
________________________________
From: Martin Jansa <martin.jansa@gmail.com<mailto:martin.jansa@gmail.com>>
Sent: Thursday, February 25, 2021 8:25:50 PM
To: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
Cc: openembedded-devel <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

Hi,

normally you should fork meta-python2 and send a link to meta-python2 change I can cherry-pick, not the blob in otherwise empty repo.

But as I've said in previous reply, I've already manually applied your change in meta-python2 master-next where it's now failing:


ERROR: python-native-2.7.18-r0 do_patch: Fuzz detected:

Applying patch CVE-2019-9674.patch
patching file Doc/library/zipfile.rst
Hunk #1 succeeded at 554 with fuzz 2 (offset -20 lines).


The context lines in the patches can be updated with devtool:

    devtool modify python-native
    devtool finish --force-patch-refresh python-native <layer_path>

Don't forget to review changes done by devtool!

ERROR: python-native-2.7.18-r0 do_patch: QA Issue: Patch log indicates that patches do not apply cleanly. [patch-fuzz]


so I'll fix this as well, but next time please better test your changes (nghttp2 patch also didn't apply, see my reply there, not sure if you have fixed that in v2)


Regards,



On Thu, Feb 25, 2021 at 9:09 AM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
Hi Martin,

I removed the emoticons and uploaded the patch to my git repo pls access below link:

https://github.com/Rahult9/upstream_patch/blob/main/CVE-2019-9674.patch<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FRahult9%2Fupstream_patch%2Fblob%2Fmain%2FCVE-2019-9674.patch&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614863746%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=CC%2BRWYUzuXwF6IuPmgo%2BBNYSam6ki%2BKf3opXGs4jpBw%3D&reserved=0>


Thanks and Regards,
Rahul Taya
________________________________
From: Martin Jansa <martin.jansa@gmail.com<mailto:martin.jansa@gmail.com>>
Sent: Thursday, February 18, 2021 10:58 PM
To: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
Cc: openembedded-devel <openembedded-devel@lists.openembedded.org<mailto:openembedded-devel@lists.openembedded.org>>; Khem Raj <raj.khem@gmail.com<mailto:raj.khem@gmail.com>>; Nisha Parrakat <Nisha.Parrakat@kpit.com<mailto:Nisha.Parrakat@kpit.com>>; Harpritkaur Bhandari <Harpritkaur.Bhandari@kpit.com<mailto:Harpritkaur.Bhandari@kpit.com>>
Subject: Re: [oe] [meta-python2][dunfell][PATCH] python: Add fix for CVE-2019-9674

"git am" doesn't like those emoticons in the .patch file..

git am ~/py2/cur/16136689*
error: cannot convert from 8bit to UTF-8
fatal: could not parse patch

either drop them or upload it to some git repo so I can cherry-pick it from there.

On Thu, Feb 18, 2021 at 3:18 PM Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>> wrote:
For python and python-native added patch to fix
CVE-2019-9674

Signed-off-by: Rahul Taya <Rahul.Taya@kpit.com<mailto:Rahul.Taya@kpit.com>>
---
 recipes-devtools/python/python.inc            |  1 +
 .../python/python/CVE-2019-9674.patch         | 83 +++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 recipes-devtools/python/python/CVE-2019-9674.patch

diff --git a/recipes-devtools/python/python.inc b/recipes-devtools/python/python.inc
index a4ba0c5..787f23e 100644
--- a/recipes-devtools/python/python.inc
+++ b/recipes-devtools/python/python.inc
@@ -8,6 +8,7 @@ INC_PR = "r1"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=203a6dbc802ee896020a47161e759642"

 SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.xz<https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.python.org%2Fftp%2Fpython%2F%24%257BPV%257D%2FPython-%24%257BPV%257D.tar.xz&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614873740%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fZ5XDPu0Tyw92t%2FlJ1ilsBn76Fi4BUGsHy5upFtw20c%3D&reserved=0> \
+           file://CVE-2019-9674.patch \
            "

 SRC_URI[sha256sum] = "b62c0e7937551d0cc02b8fd5cb0f544f9405bafc9a54d3808ed4594812edef43"
diff --git a/recipes-devtools/python/python/CVE-2019-9674.patch b/recipes-devtools/python/python/CVE-2019-9674.patch
new file mode 100644
index 0000000..647d9da
--- /dev/null
+++ b/recipes-devtools/python/python/CVE-2019-9674.patch
@@ -0,0 +1,83 @@
+From 3ba51d587f6897a45301ce9126300c14fcd4eba2 Mon Sep 17 00:00:00 2001
+From: JunWei Song <sungboss2004@gmail.com<mailto:sungboss2004@gmail.com>>
+Date: Wed, 11 Sep 2019 23:04:12 +0800
+Subject: [PATCH] bpo-36260: Add pitfalls to zipfile module documentation
+ (#13378)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+* bpo-36260: Add pitfalls to zipfile module documentation
+
+We saw vulnerability warning description (including zip bomb) in Doc/library/xml.rst file.
+This gave us the idea of documentation improvement.
+
+So, we moved a little bit forward :P
+And the doc patch can be found (pr).
+
+* fix trailing whitespace
+
+* 📜🤖 Added by blurb_it.
+
+* Reformat text for consistency.
+
+Upstream-Status: Backport[http://archive.ubuntu.com/ubuntu/pool/main/p/python3.5/python3.5_3.5.2-2ubuntu0~16.04.12.debian.tar.xz<https://apc01.safelinks.protection.outlook.com/?url=http:%2F%2Farchive.ubuntu.com%2Fubuntu%2Fpool%2Fmain%2Fp%2Fpython3.5%2Fpython3.5_3.5.2-2ubuntu0~16.04.12.debian.tar.xz&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614873740%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TMC75PnOu04fyODBF8KdtXjUhmR0YfU4ncWRWTRiLQg%3D&reserved=0>]
+CVE: CVE-2019-9674
+Link: http://archive.ubuntu.com/ubuntu/pool/main/p/python3.5/python3.5_3.5.2-2ubuntu0~16.04.12.debian.tar.xz<https://apc01.safelinks.protection.outlook.com/?url=http:%2F%2Farchive.ubuntu.com%2Fubuntu%2Fpool%2Fmain%2Fp%2Fpython3.5%2Fpython3.5_3.5.2-2ubuntu0~16.04.12.debian.tar.xz&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614883733%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=anqhyt5ynucB%2FlVaUnLA6RWrl0GKlz3u34kqk4ZUlXE%3D&reserved=0>
+Comment: From the original patch skipped changes for file
+Misc/NEWS.d/next/Documentation/2019-06-04-09-29-00.bpo-36260.WrGuc-.rst
+as this file is not present in our source code.
+---
+ Doc/library/zipfile.rst                       | 41 +++++++++++++++++++
+ 1 files changed, 41 insertions(+)
+
+diff --git a/Doc/library/zipfile.rst b/Doc/library/zipfile.rst
+index b421ea5..2e0a91d 100644
+--- a/Doc/library/zipfile.rst
++++ b/Doc/library/zipfile.rst
+@@ -574,4 +574,45 @@ Instances have the following attributes:
+
+    Size of the uncompressed file.
+
++Decompression pitfalls
++----------------------
++
++The extraction in zipfile module might fail due to some pitfalls listed below.
++
++From file itself
++~~~~~~~~~~~~~~~~
++
++Decompression may fail due to incorrect password / CRC checksum / ZIP format or
++unsupported compression method / decryption.
++
++File System limitations
++~~~~~~~~~~~~~~~~~~~~~~~
++
++Exceeding limitations on different file systems can cause decompression failed.
++Such as allowable characters in the directory entries, length of the file name,
++length of the pathname, size of a single file, and number of files, etc.
++
++Resources limitations
++~~~~~~~~~~~~~~~~~~~~~
++
++The lack of memory or disk volume would lead to decompression
++failed. For example, decompression bombs (aka `ZIP bomb`_)
++apply to zipfile library that can cause disk volume exhaustion.
++
++Interruption
++~~~~~~~~~~~~
++
++Interruption during the decompression, such as pressing control-C or killing the
++decompression process may result in incomplete decompression of the archive.
++
++Default behaviors of extraction
++~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
++
++Not knowing the default extraction behaviors
++can cause unexpected decompression results.
++For example, when extracting the same archive twice,
++it overwrites files without asking.
++
++
++.. _ZIP bomb: https://en.wikipedia.org/wiki/Zip_bomb<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FZip_bomb&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614893728%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=47O05DRkPnU6CjbSKXWLQuM%2BO4%2B2Q%2FwKFrdzmpqB%2FF0%3D&reserved=0>
+ .. _PKZIP Application Note: https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT<https://apc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpkware.cachefly.net%2Fwebdocs%2Fcasestudies%2FAPPNOTE.TXT&data=04%7C01%7CRahul.Taya%40kpit.com%7C10953aac03c94ff4821808d8de5c5d97%7C3539451eb46e4a26a242ff61502855c7%7C0%7C0%7C637503835614893728%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=E9aClMux7AXNYYe36EdbrksrvWp57TbGEpeo%2BJefZBM%3D&reserved=0>
--
2.17.1

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This message contains information that may be privileged or confidential and is the property of the KPIT Technologies Ltd. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. KPIT Technologies Ltd. does not accept any liability for virus infected mails.

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