oss-sec mailing list archives
Re: CVE Request: libxml2 external parsed entities issue
From: Kurt Seifried <kseifried () redhat com>
Date: Fri, 05 Jul 2013 13:12:46 -0600
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/05/2013 08:38 AM, Marcus Meissner wrote:
On Fri, Jul 05, 2013 at 09:30:07AM -0400, Marc Deslauriers wrote:On 13-07-05 09:17 AM, Marcus Meissner wrote:On Fri, Jul 05, 2013 at 08:48:04AM -0400, Marc Deslauriers wrote:Hello, libxml2 earlier than 2.9.0 fetches external parsed entities by default, with no way to disable the behaviour. Fixed by the following commit: https://git.gnome.org/browse/libxml2/commit/?id=4629ee02ac649c27f9c0cf98ba017c6b5526070f
More Information:
https://mail.gnome.org/archives/xml/2012-October/msg00045.html
https://github.com/sparklemotion/nokogiri/issues/693
https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1194410
Could a CVE please be assigned to this issue?
Sounds like http://seclists.org/oss-sec/2013/q1/391 and "Please use CVE-2013-0339 for libxml2 external entities expansion" ?Hrm, I would have thought CVE-2013-0339 was for the entities expansion DoS issue fixed by this commit: https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab
The other one is for external entities expansion being enabled by default with
no way to turn it off. You would lump them together?Mostly wondering, as it seemed more or less related. Perhaps someone else has more insight. Ciao, Marcus
So the emails covering this: http://www.openwall.com/lists/oss-security/2013/04/12/6 CVE-2013-0338 - libxml2 internal entity expansion CVE-2013-0339 - libxml2 external entities expansion For CVE-2013-0340 and CVE-2013-0339, there are "workarounds" available for application developers, although such workarounds may be very expensive to develop, and this might place "too much" responsibility to the developers - so, these assignments may still be OK. It is still worth discussion. So same problem, just a new (better) fix is my take, Steve, does that work for you as well? - -- Kurt Seifried Red Hat Security Response Team (SRT) PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) iQIcBAEBAgAGBQJR1xquAAoJEBYNRVNeJnmTfQwQAJGm8zXjmI5zOPtYsl6BX2T5 5KSQ7ZkfB7iEaaHEtiZPnocXlf0No7jpq6VtMqdoiTQ3mzCXiMvs7Cev6jg9EeA7 OnHu7Z7C/m5ZAwxdclwJ+83TjtSKcf/Yz1K6vRIAlTeh+cDWhqWGIW/48bX54KTh Uj+8oW7ka101ZLaycA8y0UwPsiz9vzrHAonDSn09CcUI7AhxgsLTKOHIl0UgGIZi WHNw5rQaxxXtEkyVh4Y0lsn1mqvJv8kSjaRUQ+dH9bv8ToIzGYbm6NLdJtcXl7FX +IIxhhWpvJnYaTnqazzN0GFT55AmFf8x6Fu4FPrbW3Pc5S6UdRBVjjdm/Vs3TFr8 IBDoSp0nqGkIr2Wx9n8BfZeRb7sAUkGZm3l4enue7W9HwQghdzsTyZrL+9xtHO+B 0YGuo4r+DxFyGMnsyU7m1oXQoCvALp02KPBpr566dKpZ7MFxyim/h8dUxRCO+7R6 8pVI7icFb+lKfimQryqgclXmmDaFCmikbHwZ+v+J1CrB4yQ3I0JLo7pxi5mNtEvx uqU9xvlGZpJiWjDnIRAe4JPgKTqu2AHOQXJv9ITXW1T7E9w9JrB+b14gwM965HT4 UkPH9OusLZFFp+PBK8CyZAzQ/yOCfoFxkW9DtvWif5CGHORLos01lLogZdITQ7Eq Kf9QNiB0vbB51dKcpqPt =xLit -----END PGP SIGNATURE-----
Current thread:
- CVE Request: libxml2 external parsed entities issue Marc Deslauriers (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Marcus Meissner (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Marc Deslauriers (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Marcus Meissner (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Kurt Seifried (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Marc Deslauriers (Jul 05)
- Re: CVE Request: libxml2 external parsed entities issue Marcus Meissner (Jul 05)