CVE-2015-8104
Description
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-8104
Vendor advisory: cve@mitre.org — https://github.com/torvalds/linux/commit/cbdb967af3d54993f5814f1cee0ed311a055377d
Vendor advisory: cve@mitre.org — https://bugzilla.redhat.com/show_bug.cgi?id=1278496
Vendor advisory: cve@mitre.org — http://xenbits.xen.org/xsa/advisory-156.html
Vendor advisory: cve@mitre.org — http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
Vendor advisory: cve@mitre.org — http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
Vendor advisory: cve@mitre.org — http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cbdb967af3d54993f5814f1cee0ed311a055377d
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 4.2.6-2 |
| debian | bullseye | fixed | 4.2.6-2 |
| debian | forky | fixed | 4.2.6-2 |
| debian | sid | fixed | 4.2.6-2 |
| debian | trixie | fixed | 4.2.6-2 |
| debian | 7.0 | affected | |
| debian | 8.0 | affected | |
| debian | 9.0 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 15.04 | affected | |
| linux-kernel | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| oracle | vm_virtualbox | {"startIncluding":"4.0.0","endIncluding":"4.0.34"} | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cbdb967af3d54993f5814f1cee0ed311a055377d
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
- http://rhn.redhat.com/errata/RHSA-2015-2636.html
- http://rhn.redhat.com/errata/RHSA-2015-2645.html
- http://rhn.redhat.com/errata/RHSA-2016-0046.html
- http://support.citrix.com/article/CTX202583
- http://support.citrix.com/article/CTX203879
- http://www.debian.org/security/2015/dsa-3414
- http://www.debian.org/security/2015/dsa-3426
- http://www.debian.org/security/2016/dsa-3454
- http://www.openwall.com/lists/oss-security/2015/11/10/5
- http://www.openwall.com/lists/oss-security/2023/10/10/4
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
CWEs
CWE-399
Verify integrity in audit chain (admin only). AS-IS.