CVE-2018-7540MEDIUM
New! CVE Severity Now Using CVSS v3
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Description
An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.
References
http://www.securityfocus.com/bid/103174
http://www.securitytracker.com/id/1040773
https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
https://security.gentoo.org/glsa/201810-06
https://support.citrix.com/article/CTX232096
https://support.citrix.com/article/CTX232655
Details
Source: MITRE
Published: 2018-02-27
Updated: 2018-11-13
Type: CWE-400
Risk Information
CVSS v2
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
CVSS v3
Base Score: 6.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4
Exploitability Score: 2
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to 4.10.0 (inclusive)
Configuration 2
OR
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 |
| 118963 | OracleVM 3.2 : xen (OVMSA-2018-0272) (Foreshadow) (Spectre) | Nessus | OracleVM Local Security Checks | high |
| 118962 | OracleVM 3.3 : xen (OVMSA-2018-0271) (Foreshadow) (Spectre) | Nessus | OracleVM Local Security Checks | high |
| 118892 | Debian DLA-1577-1 : xen security update | Nessus | Debian Local Security Checks | high |
| 118506 | GLSA-201810-06 : Xen: Multiple vulnerabilities (Foreshadow) (Meltdown) (Spectre) | Nessus | Gentoo Local Security Checks | critical |
| 111992 | OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre) | Nessus | OracleVM Local Security Checks | critical |
| 109987 | OracleVM 3.4 : xen (OVMSA-2018-0218) (Meltdown) (Spectre) | Nessus | OracleVM Local Security Checks | high |
| 109751 | openSUSE Security Update : xen (openSUSE-2018-454) (Meltdown) | Nessus | SuSE Local Security Checks | high |
| 109677 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:1184-1) (Meltdown) | Nessus | SuSE Local Security Checks | high |
| 109001 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:0909-1) (Meltdown) (Spectre) | Nessus | SuSE Local Security Checks | high |
| 108887 | Citrix XenServer Multiple Vulnerabilities (CTX232655) | Nessus | Misc. | critical |
| 108886 | Citrix XenServer Multiple Vulnerabilities (CTX232096) | Nessus | Misc. | high |
| 108492 | Fedora 26 : xen (2018-0746dac335) | Nessus | Fedora Local Security Checks | high |
| 108369 | SUSE SLES11 Security Update : xen (SUSE-SU-2018:0678-1) (Meltdown) (Spectre) | Nessus | SuSE Local Security Checks | high |
| 107176 | Fedora 27 : xen (2018-c553a586c8) | Nessus | Fedora Local Security Checks | high |
| 107134 | Debian DLA-1300-1 : xen security update | Nessus | Debian Local Security Checks | high |
| 107130 | OracleVM 3.4 : xen (OVMSA-2018-0021) (Meltdown) (Spectre) | Nessus | OracleVM Local Security Checks | high |
| 107129 | OracleVM 3.4 : xen (OVMSA-2018-0020) (Meltdown) (Spectre) | Nessus | OracleVM Local Security Checks | high |
| 107123 | Debian DSA-4131-1 : xen - security update | Nessus | Debian Local Security Checks | high |
| 107097 | Xen guest_remove_page() Function Pagetable Unpinning Handling Guest-to-host DoS (XSA-252) | Nessus | Misc. | medium |