Executive Summary
| Informations | |||
|---|---|---|---|
| Name | MDVSA-2009:016 | First vendor Publication | 2009-01-16 |
| Vendor | Mandriva | Last vendor Modification | 2009-01-16 |
| Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.2 | Attack Range | Local |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 3.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Ian Jackson found a security issue in the QEMU block device drivers backend that could allow a guest operating system to issue a block device request and read or write arbitrary memory locations, which could then lead to privilege escalation (CVE-2008-0928). It was found that Xen allowed unprivileged DomU domains to overwrite xenstore values which should only be changeable by the privileged Dom0 domain. An attacker able to control a DomU domain could possibly use this flaw to kill arbitrary processes in Dom0 or trick a Dom0 user into accessing the text console of a different domain running on the same host. This update makes certain parts of xenstore tree read-only to unprivilged DomU domains (CVE-2008-4405). A vulnerability in the qemu-dm.debug script was found in how it created a temporary file in /tmp. A local attacker in Dom0 could potentially use this flaw to overwrite arbitrary files via a symlink attack (CVE-2008-4993). Since this script is not used in production, it has been removed from this update package. The updated packages have been patched to prevent these issues. |
Original Source
| Url : http://www.mandriva.com/security/advisories?name=MDVSA-2009:016 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 67 % | CWE-264 | Permissions, Privileges, and Access Controls |
| 33 % | CWE-59 | Improper Link Resolution Before File Access ('Link Following') |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:10627 | |||
| Oval ID: | oval:org.mitre.oval:def:10627 | ||
| Title: | xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen. | ||
| Description: | xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2008-4405 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 Oracle Linux 5 | Product(s): | |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:21845 | |||
| Oval ID: | oval:org.mitre.oval:def:21845 | ||
| Title: | ELSA-2009:0003: xen security and bug fix update (Moderate) | ||
| Description: | qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/args temporary file. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2009:0003-01 CVE-2008-4405 CVE-2008-4993 | Version: | 13 |
| Platform(s): | Oracle Linux 5 | Product(s): | xen |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:28776 | |||
| Oval ID: | oval:org.mitre.oval:def:28776 | ||
| Title: | RHSA-2009:0003 -- xen security and bug fix update (Moderate) | ||
| Description: | Updated xen packages that resolve several security issues and a bug are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The xen packages contain the Xen tools and management daemons needed to manage virtual machines running on Red Hat Enterprise Linux. Xen was found to allow unprivileged DomU domains to overwrite xenstore values which should only be changeable by the privileged Dom0 domain. An attacker controlling a DomU domain could, potentially, use this flaw to kill arbitrary processes in Dom0 or trick a Dom0 user into accessing the text console of a different domain running on the same host. This update makes certain parts of the xenstore tree read-only to the unprivileged DomU domains. (CVE-2008-4405) | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2009:0003 CESA-2009:0003-CentOS 5 CVE-2008-4405 CVE-2008-4993 | Version: | 3 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 | Product(s): | xen |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:9576 | |||
| Oval ID: | oval:org.mitre.oval:def:9576 | ||
| Title: | qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/args temporary file. | ||
| Description: | qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/args temporary file. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2008-4993 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 Oracle Linux 5 | Product(s): | |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:9706 | |||
| Oval ID: | oval:org.mitre.oval:def:9706 | ||
| Title: | Qemu 0.9.1 and earlier does not perform range checks for block device read or write requests, which allows guest host users with root privileges to access arbitrary memory and escape the virtual machine. | ||
| Description: | Qemu 0.9.1 and earlier does not perform range checks for block device read or write requests, which allows guest host users with root privileges to access arbitrary memory and escape the virtual machine. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2008-0928 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 Oracle Linux 5 | Product(s): | |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2011-08-09 | Name : CentOS Update for xen CESA-2009:0003 centos5 i386 File : nvt/gb_CESA-2009_0003_xen_centos5_i386.nasl |
| 2009-10-13 | Name : Mandrake Security Advisory MDVSA-2009:257 (qemu) File : nvt/mdksa_2009_257.nasl |
| 2009-09-21 | Name : SuSE Security Summary SUSE-SR:2009:015 File : nvt/suse_sr_2009_015.nasl |
| 2009-06-05 | Name : Ubuntu USN-774-1 (moin) File : nvt/ubuntu_774_1.nasl |
| 2009-06-05 | Name : Ubuntu USN-773-1 (pango1.0) File : nvt/ubuntu_773_1.nasl |
| 2009-06-05 | Name : Ubuntu USN-772-1 (mpfr) File : nvt/ubuntu_772_1.nasl |
| 2009-06-05 | Name : Ubuntu USN-771-1 (libmodplug) File : nvt/ubuntu_771_1.nasl |
| 2009-05-20 | Name : Debian Security Advisory DSA 1799-1 (qemu) File : nvt/deb_1799_1.nasl |
| 2009-04-09 | Name : Mandriva Update for qemu MDVSA-2008:162 (qemu) File : nvt/gb_mandriva_MDVSA_2008_162.nasl |
| 2009-04-06 | Name : SuSE Security Summary SUSE-SR:2009:008 File : nvt/suse_sr_2009_008.nasl |
| 2009-03-06 | Name : RedHat Update for xen RHSA-2008:0194-01 File : nvt/gb_RHSA-2008_0194-01_xen.nasl |
| 2009-02-16 | Name : Fedora Update for qemu FEDORA-2008-2001 File : nvt/gb_fedora_2008_2001_qemu_fc7.nasl |
| 2009-02-16 | Name : Fedora Update for xen FEDORA-2008-2057 File : nvt/gb_fedora_2008_2057_xen_fc8.nasl |
| 2009-02-16 | Name : Fedora Update for qemu FEDORA-2008-1995 File : nvt/gb_fedora_2008_1995_qemu_fc8.nasl |
| 2009-02-16 | Name : Fedora Update for kvm FEDORA-2008-1993 File : nvt/gb_fedora_2008_1993_kvm_fc8.nasl |
| 2009-02-16 | Name : Fedora Update for kvm FEDORA-2008-1973 File : nvt/gb_fedora_2008_1973_kvm_fc7.nasl |
| 2009-01-20 | Name : Mandrake Security Advisory MDVSA-2009:016 (xen) File : nvt/mdksa_2009_016.nasl |
| 2009-01-13 | Name : CentOS Security Advisory CESA-2009:0003 (xen) File : nvt/ovcesa2009_0003.nasl |
| 2009-01-07 | Name : RedHat Security Advisory RHSA-2009:0003 File : nvt/RHSA_2009_0003.nasl |
| 2008-09-04 | Name : FreeBSD Ports: qemu, qemu-devel File : nvt/freebsd_qemu1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 49708 | Xen qemu-dm.debug /tmp/args Temporary File Symlink Arbitrary File Overwrite |
| 48894 | libvirt xenstore /local/domain/ Subdirectory Xen Guest VM File Modification |
| 42983 | QEMU Block Device Read/Write Request Arbitrary Memory Access |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2014-11-26 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2009-0001.nasl - Type : ACT_GATHER_INFO |
| 2014-11-26 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2008-2003.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2008-0194.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2009-0003.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20090107_xen_on_SL5_x.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20080513_xen_on_SL5_x.nasl - Type : ACT_GATHER_INFO |
| 2010-01-06 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2009-0003.nasl - Type : ACT_GATHER_INFO |
| 2010-01-06 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2008-0194.nasl - Type : ACT_GATHER_INFO |
| 2009-10-07 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2009-257.nasl - Type : ACT_GATHER_INFO |
| 2009-09-02 | Name : The remote openSUSE host is missing a security update. File : suse_11_0_xen-090821.nasl - Type : ACT_GATHER_INFO |
| 2009-07-21 | Name : The remote openSUSE host is missing a security update. File : suse_11_1_qemu-090325.nasl - Type : ACT_GATHER_INFO |
| 2009-07-21 | Name : The remote openSUSE host is missing a security update. File : suse_11_0_qemu-090325.nasl - Type : ACT_GATHER_INFO |
| 2009-05-13 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-1799.nasl - Type : ACT_GATHER_INFO |
| 2009-04-23 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2008-162.nasl - Type : ACT_GATHER_INFO |
| 2009-04-03 | Name : The remote openSUSE host is missing a security update. File : suse_qemu-6123.nasl - Type : ACT_GATHER_INFO |
| 2009-01-07 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2009-0003.nasl - Type : ACT_GATHER_INFO |
| 2008-05-16 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2008-0194.nasl - Type : ACT_GATHER_INFO |
| 2008-03-13 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_9cfbca7fefb711dcbe010211060005df.nasl - Type : ACT_GATHER_INFO |
| 2008-02-29 | Name : The remote Fedora host is missing a security update. File : fedora_2008-2083.nasl - Type : ACT_GATHER_INFO |
| 2008-02-29 | Name : The remote Fedora host is missing a security update. File : fedora_2008-2057.nasl - Type : ACT_GATHER_INFO |
| 2008-02-26 | Name : The remote Fedora host is missing a security update. File : fedora_2008-1993.nasl - Type : ACT_GATHER_INFO |
| 2008-02-26 | Name : The remote Fedora host is missing a security update. File : fedora_2008-1973.nasl - Type : ACT_GATHER_INFO |
| 2008-02-26 | Name : The remote Fedora host is missing a security update. File : fedora_2008-2001.nasl - Type : ACT_GATHER_INFO |
| 2008-02-26 | Name : The remote Fedora host is missing a security update. File : fedora_2008-1995.nasl - Type : ACT_GATHER_INFO |
