CVE-2015-7835HIGH
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
References
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
http://support.citrix.com/article/CTX202404
http://www.debian.org/security/2015/dsa-3390
http://www.securityfocus.com/bid/77366
http://www.securitytracker.com/id/1034032
http://xenbits.xen.org/xsa/advisory-148.html
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.3.4:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 140019 | OracleVM 3.4 : xen (OVMSA-2020-0039) (Bunker Buster) (Foreshadow) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (Meltdown) (POODLE) (Spectre) | Nessus | OracleVM Local Security Checks | critical |
| 111992 | OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre) | Nessus | OracleVM Local Security Checks | critical |
| 91756 | OracleVM 3.2 : xen (OVMSA-2016-0081) | Nessus | OracleVM Local Security Checks | high |
| 90380 | GLSA-201604-03 : Xen: Multiple vulnerabilities (Venom) | Nessus | Gentoo Local Security Checks | critical |
| 89359 | Fedora 23 : xen-4.5.1-14.fc23 (2015-a931b02be2) | Nessus | Fedora Local Security Checks | high |
| 89278 | Fedora 22 : xen-4.5.1-14.fc22 (2015-6f6b79efe2) | Nessus | Fedora Local Security Checks | high |
| 89177 | Fedora 21 : xen-4.4.3-7.fc21 (2015-242be2c240) | Nessus | Fedora Local Security Checks | high |
| 87650 | SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:2338-1) | Nessus | SuSE Local Security Checks | high |
| 87591 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:2328-1) | Nessus | SuSE Local Security Checks | high |
| 87588 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:2324-1) | Nessus | SuSE Local Security Checks | high |
| 87443 | openSUSE Security Update : xen (openSUSE-2015-893) | Nessus | SuSE Local Security Checks | high |
| 87393 | openSUSE Security Update : xen (openSUSE-2015-892) | Nessus | SuSE Local Security Checks | medium |
| 87273 | OracleVM 2.2 : xen (OVMSA-2015-0151) | Nessus | OracleVM Local Security Checks | high |
| 86961 | openSUSE Security Update : xen (openSUSE-2015-730) | Nessus | SuSE Local Security Checks | high |
| 86909 | openSUSE Security Update : xen (openSUSE-2015-750) | Nessus | SuSE Local Security Checks | medium |
| 86865 | SUSE SLES11 Security Update : xen (SUSE-SU-2015:1952-1) | Nessus | SuSE Local Security Checks | medium |
| 86863 | openSUSE Security Update : xen (openSUSE-2015-729) | Nessus | SuSE Local Security Checks | medium |
| 86836 | FreeBSD : xen-kernel -- Uncontrolled creation of large page mappings by PV guests (3d9f6260-881d-11e5-ab94-002590263bf5) | Nessus | FreeBSD Local Security Checks | high |
| 86802 | OracleVM 3.2 : xen (OVMSA-2015-0143) | Nessus | OracleVM Local Security Checks | high |
| 86756 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:1908-1) | Nessus | SuSE Local Security Checks | medium |
| 86753 | SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1894-1) | Nessus | SuSE Local Security Checks | medium |
| 86704 | SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1853-1) | Nessus | SuSE Local Security Checks | medium |
| 86700 | Debian DSA-3390-1 : xen - security update | Nessus | Debian Local Security Checks | high |
| 86670 | OracleVM 3.2 : xen (OVMSA-2015-0142) | Nessus | OracleVM Local Security Checks | high |
| 86669 | OracleVM 3.3 : xen (OVMSA-2015-0141) | Nessus | OracleVM Local Security Checks | high |