CVE-2017-0663: Buffer Overflow
First published: Mon Jun 05 2017(Updated: )
A heap-based buffer overflow vulnerability in libxml2 in xmlValidateOneNamespace function due to incorrect casting was found. Upstream bug (private at this moment): <a href="https://bugzilla.gnome.org/show_bug.cgi?id=780228">https://bugzilla.gnome.org/show_bug.cgi?id=780228</a> Oss-fuzz bug report: <a href="https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=598">https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=598</a> Android patch: <a href="https://android.googlesource.com/platform/external/libxml2/+/521b88fbb6d18312923f0df653d045384b500ffc">https://android.googlesource.com/platform/external/libxml2/+/521b88fbb6d18312923f0df653d045384b500ffc</a> References: <a href="https://source.android.com/security/bulletin/2017-06-01#libraries">https://source.android.com/security/bulletin/2017-06-01#libraries</a>
Credit: security@android.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libxml | <2.9.5 | 2.9.5 |
| debian/libxml2 | 2.9.4+dfsg1-7+deb10u4 2.9.4+dfsg1-7+deb10u6 2.9.10+dfsg-6.7+deb11u4 2.9.14+dfsg-1.3~deb12u1 2.9.14+dfsg-1.3 | |
| Android | ||
| Android | =4.4.4 | |
| Android | =5.0.2 | |
| Android | =5.1.1 | |
| Android | =6.0 | |
| Android | =6.0.1 | |
| Android | =7.0 | |
| Android | =7.1.1 | |
| Android | =7.1.2 |
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Reference Links
- https://bugzilla.gnome.org/show_bug.cgi?id=780228
- https://security-tracker.debian.org/tracker/CVE-2017-0663
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0663
- https://git.gnome.org/browse/libxml2/commit/?id=92b9e8c8b3787068565a1820ba575d042f9eec66
- https://bugzilla.redhat.com/show_bug.cgi?id=1462225
- https://bugzilla.redhat.com/show_bug.cgi?id=1462225#c2
- https://bugzilla.redhat.com/show_bug.cgi?id=1462225#c3
- https://bugzilla.novell.com/show_bug.cgi?id=1044337
- https://mapreri.org
- https://launchpad.net/~mapreri
- https://qa.debian.org/developer.php?login=mattia
- https://security-tracker.debian.org/tracker/CVE-2017-7376
- https://security-tracker.debian.org/tracker/CVE-2017-7375
- https://security-tracker.debian.org/tracker/CVE-2017-9049
- https://security-tracker.debian.org/tracker/CVE-2017-9050
- https://security-tracker.debian.org/tracker/CVE-2017-9047
- https://security-tracker.debian.org/tracker/CVE-2017-9048
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870870
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=598
- https://android.googlesource.com/platform/external/libxml2/+/521b88fbb6d18312923f0df653d045384b500ffc
- https://source.android.com/security/bulletin/2017-06-01#libraries
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1462226
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1462227
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1462228
- https://gitlab.gnome.org/GNOME/libxml2/commit/92b9e8c8
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/92b9e8c8b3787068565a1820ba575d042f9eec66
- http://www.debian.org/security/2017/dsa-3952
- http://www.securityfocus.com/bid/98877
- http://www.securitytracker.com/id/1038623
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201711-01
- https://source.android.com/security/bulletin/2017-06-01
- https://source.android.com/docs/security/bulletin/2017-06-01 (Advisory)
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2017-0663?
CVE-2017-0663 is classified as a high severity vulnerability due to its potential for exploitation via a heap-based buffer overflow.
How do I fix CVE-2017-0663?
To fix CVE-2017-0663, upgrade to the latest version of libxml2 or libxml that addresses the vulnerability.
Which systems are affected by CVE-2017-0663?
CVE-2017-0663 affects various versions of libxml2, libxml on Red Hat, and multiple versions of Android.
What is the nature of the vulnerability in CVE-2017-0663?
CVE-2017-0663 involves a heap-based buffer overflow caused by incorrect casting in the xmlValidateOneNamespace function.
Is there a known exploit for CVE-2017-0663?
As of now, there are no public exploits reported for CVE-2017-0663, but it remains a serious concern.
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