Bug 956260 (CVE-2015-8317) - VUL-1: CVE-2015-8317: libxml2: Several out of bounds reads
Summary: VUL-1: CVE-2015-8317: libxml2: Several out of bounds reads
Status: RESOLVED FIXED
Alias: CVE-2015-8317
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P4 - Low : Normal
Target Milestone: ---
Deadline: 2016-01-22
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/159018/
Whiteboard: CVSSv2:RedHat:CVE-2015-8317:4.3:(AV:N...
Keywords:
Depends on:
Blocks:
 
Reported: 2015-11-23 13:22 UTC by Alexander Bergmann
Modified: 2016-01-22 09:21 UTC (History)
3 users (show)

See Also:
Found By: Security Response Team
Services Priority:
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Alexander Bergmann 2015-11-23 13:22:19 UTC 
Via oss security reported by Hanno Böck:

> https://blog.fuzzing-project.org/28-Libxml2-Several-out-of-bounds-reads.html

As far as we can tell, what you mean is that:

  - http://www.xmlsoft.org/news.html mentions 10 CVE IDs

  - the descriptions of those CVE IDs seem largely unrelated to
    either 751603 or 751631

  - also, there is discussion in 751631 about possibly not having
    a CVE ID

  - the cve-assign@mitre.org address was on your Cc line

and thus your own preference is for your research to have a CVE mapping
when possible.

> A malformed XML file can cause a heap out of bounds read access in the
> function xmlParseXMLDecl.

> xmlParseXMLDecl: out of bounds heap access if versionencoding="es and any UTF-8 got

> https://bugzilla.gnome.org/show_bug.cgi?id=751603
> https://git.gnome.org/browse/libxml2/commit/?id=9aa37588ee78a06ca1379a9d9356eab16686099c


> A second, very similar issue in the same function xmlParseXMLDecl.

> xmlParseXMLDecl: out of bounds heap read on 0xff char in xml declaration

> https://bugzilla.gnome.org/show_bug.cgi?id=751631
> https://git.gnome.org/browse/libxml2/commit/?id=709a952110e98621c9b78c4f26462a9d8333102e

Use CVE-2015-8317 for both 751603 and 751631.


> A malformed XML file can cause a global out of bounds read access in
> the function xmlNextChar. This only affected the git code and was never
> an issue in any release version. Upstream bug #751643

In the case of a widely used library, a vulnerability in git code,
without an affected upstream release, can sometimes have a CVE ID.
However, it would be necessary to establish that a product used the
vulnerable code. For example, at least in the past, one of the
principal libxml2 users was Chrome. At present, it seems that Chromium
is using parserInternals.c from 2.9.2, not from unreleased git code
(download
https://chromium.googlesource.com/chromium/src/+/master/third_party/libxml/src/parserInternals.c?format=TEXT
and then base64 decode that and compare it to the 2.9.2 file). Our
guess is that it is unlikely that this specific xmlNextChar
vulnerability affected a product; we are not planning to research
this, but other people can research it if they wish. There is
currently no CVE ID for 751643.


References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8317
http://seclists.org/oss-sec/2015/q4/354
Comment 1 Swamp Workflow Management 2015-11-23 23:00:31 UTC 
bugbot adjusting priority
Comment 2 SMASH SMASH 2015-11-30 12:17:04 UTC 
An update workflow for this issue was started.

This issue was rated as "moderate".
Please submit fixed packages until "Dec. 14, 2015".

When done, reassign the bug to "security-team@suse.de".
/update/121058/.
Comment 6 Bernhard Wiedemann 2015-12-17 14:00:56 UTC 
This is an autogenerated message for OBS integration:
This bug (956260) was mentioned in
https://build.opensuse.org/request/show/349390 13.2+13.1 / libxml2
Comment 8 Swamp Workflow Management 2015-12-27 00:14:06 UTC 
openSUSE-SU-2015:2372-1: An update that fixes 14 vulnerabilities is now available.

Category: security (moderate)
Bug References: 928193,951734,951735,954429,956018,956021,956260,957105,957106,957107,957109,957110
CVE References: CVE-2014-0191,CVE-2014-3660,CVE-2015-1819,CVE-2015-5312,CVE-2015-7497,CVE-2015-7498,CVE-2015-7499,CVE-2015-7500,CVE-2015-7941,CVE-2015-7942,CVE-2015-8035,CVE-2015-8241,CVE-2015-8242,CVE-2015-8317
Sources used:
openSUSE 13.2 (src):    libxml2-2.9.3-7.4.1, python-libxml2-2.9.3-7.4.1
openSUSE 13.1 (src):    libxml2-2.9.3-2.19.1, python-libxml2-2.9.3-2.19.1
Comment 9 Swamp Workflow Management 2016-01-05 14:25:44 UTC 
An update workflow for this issue was started.
This issue was rated as moderate.
Please submit fixed packages until 2016-01-19.
When done, reassign the bug to security-team@suse.de.
https://swamp.suse.de/webswamp/wf/62411
Comment 10 Swamp Workflow Management 2016-01-05 19:12:33 UTC 
SUSE-SU-2016:0030-1: An update that fixes 11 vulnerabilities is now available.

Category: security (moderate)
Bug References: 928193,951734,951735,956018,956021,956260,957105,957106,957107,957109,957110
CVE References: CVE-2015-1819,CVE-2015-5312,CVE-2015-7497,CVE-2015-7498,CVE-2015-7499,CVE-2015-7500,CVE-2015-7941,CVE-2015-7942,CVE-2015-8241,CVE-2015-8242,CVE-2015-8317
Sources used:
SUSE Linux Enterprise Software Development Kit 11-SP4 (src):    libxml2-2.7.6-0.34.1
SUSE Linux Enterprise Software Development Kit 11-SP3 (src):    libxml2-2.7.6-0.34.1
SUSE Linux Enterprise Server for VMWare 11-SP3 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Server 11-SP4 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Server 11-SP3 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Desktop 11-SP4 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Desktop 11-SP3 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Debuginfo 11-SP4 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
SUSE Linux Enterprise Debuginfo 11-SP3 (src):    libxml2-2.7.6-0.34.1, libxml2-python-2.7.6-0.34.4
Comment 11 Swamp Workflow Management 2016-01-07 16:14:00 UTC 
SUSE-SU-2016:0049-1: An update that fixes 12 vulnerabilities is now available.

Category: security (moderate)
Bug References: 928193,951734,951735,954429,956018,956021,956260,957105,957106,957107,957109,957110
CVE References: CVE-2015-1819,CVE-2015-5312,CVE-2015-7497,CVE-2015-7498,CVE-2015-7499,CVE-2015-7500,CVE-2015-7941,CVE-2015-7942,CVE-2015-8035,CVE-2015-8241,CVE-2015-8242,CVE-2015-8317
Sources used:
SUSE Linux Enterprise Software Development Kit 12-SP1 (src):    libxml2-2.9.1-13.1
SUSE Linux Enterprise Software Development Kit 12 (src):    libxml2-2.9.1-13.1
SUSE Linux Enterprise Server 12-SP1 (src):    libxml2-2.9.1-13.1, python-libxml2-2.9.1-13.1
SUSE Linux Enterprise Server 12 (src):    libxml2-2.9.1-13.1, python-libxml2-2.9.1-13.1
SUSE Linux Enterprise Desktop 12-SP1 (src):    libxml2-2.9.1-13.1, python-libxml2-2.9.1-13.1
SUSE Linux Enterprise Desktop 12 (src):    libxml2-2.9.1-13.1, python-libxml2-2.9.1-13.1
Comment 12 SMASH SMASH 2016-01-08 15:02:18 UTC 
An update workflow for this issue was started.

This issue was rated as "moderate".
Please submit fixed packages until "Jan. 22, 2016".

When done, reassign the bug to "security-team@suse.de".
/update/121235/.
Comment 13 SMASH SMASH 2016-01-08 15:07:05 UTC 
An update workflow for this issue was started.

This issue was rated as "moderate".
Please submit fixed packages until "Jan. 22, 2016".

When done, reassign the bug to "security-team@suse.de".
/update/62418/.
Comment 14 Swamp Workflow Management 2016-01-08 15:08:06 UTC 
An update workflow for this issue was started.
This issue was rated as moderate.
Please submit fixed packages until 2016-01-22.
When done, reassign the bug to security-team@suse.de.
https://swamp.suse.de/webswamp/wf/62418
Comment 15 Swamp Workflow Management 2016-01-13 17:13:32 UTC 
openSUSE-SU-2016:0106-1: An update that fixes 12 vulnerabilities is now available.

Category: security (moderate)
Bug References: 928193,951734,951735,954429,956018,956021,956260,957105,957106,957107,957109,957110
CVE References: CVE-2015-1819,CVE-2015-5312,CVE-2015-7497,CVE-2015-7498,CVE-2015-7499,CVE-2015-7500,CVE-2015-7941,CVE-2015-7942,CVE-2015-8035,CVE-2015-8241,CVE-2015-8242,CVE-2015-8317
Sources used:
openSUSE Leap 42.1 (src):    libxml2-2.9.1-10.1, python-libxml2-2.9.1-10.1
Comment 16 Andreas Stieger 2016-01-22 09:21:26 UTC 
All done, closing