CVE-2017-15593medium
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
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (memory leak) because reference counts are mishandled.
References
http://www.securitytracker.com/id/1039568
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX228867
Details
Source: MITRE
Published: 2017-10-18
Updated: 2019-10-03
Type: CWE-772
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 4.9.0 (inclusive)
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 |
| 118503 | Debian DLA-1559-1 : xen security update | Nessus | Debian Local Security Checks | high |
| 111992 | OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre) | Nessus | OracleVM Local Security Checks | critical |
| 106038 | GLSA-201801-14 : Xen: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | high |
| 105971 | Fedora 27 : xen (2017-c432db2971) | Nessus | Fedora Local Security Checks | high |
| 104819 | Debian DSA-4050-1 : xen - security update | Nessus | Debian Local Security Checks | critical |
| 104708 | Debian DLA-1181-1 : xen security update | Nessus | Debian Local Security Checks | high |
| 104349 | openSUSE Security Update : xen (openSUSE-2017-1239) | Nessus | SuSE Local Security Checks | high |
| 104347 | Fedora 25 : xen (2017-d4709b0d8b) | Nessus | Fedora Local Security Checks | high |
| 104310 | Fedora 26 : xen (2017-5bcddc1984) | Nessus | Fedora Local Security Checks | high |
| 104255 | SUSE SLES12 Security Update : xen (SUSE-SU-2017:2873-1) | Nessus | SuSE Local Security Checks | high |
| 104252 | SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:2864-1) | Nessus | SuSE Local Security Checks | high |
| 104249 | OracleVM 3.4 : xen (OVMSA-2017-0166) | Nessus | OracleVM Local Security Checks | critical |
| 104209 | SUSE SLES12 Security Update : xen (SUSE-SU-2017:2856-1) | Nessus | SuSE Local Security Checks | high |
| 104201 | OracleVM 3.2 / 3.3 / 3.4 : xen (OVMSA-2017-0162) | Nessus | OracleVM Local Security Checks | critical |
| 104099 | SUSE SLES11 Security Update : xen (SUSE-SU-2017:2815-1) | Nessus | SuSE Local Security Checks | high |
| 104098 | SUSE SLES11 Security Update : xen (SUSE-SU-2017:2812-1) | Nessus | SuSE Local Security Checks | high |
| 104085 | openSUSE Security Update : xen (openSUSE-2017-1181) | Nessus | SuSE Local Security Checks | high |
| 103979 | Xen Hypervisor New CPU Interrupt Descriptor Table (IDT) Copy Handling Guest-to-Host Privilege Escalation (XSA-244) | Nessus | Misc. | high |
| 103978 | Xen Hypervisor Translated Guest Self-linear Shadow Mapping Handling Guest-to-Host Privilege Escalation (XSA-243) | Nessus | Misc. | high |
| 103977 | Xen Hypervisor Page Type Reference Handling Memory Exhaustion Guest-to-Host DoS (XSA-242) | Nessus | Misc. | high |
| 103976 | Xen Hypervisor TLB Flush Request Handling Race Condition System Memory Access Guest-to-Host Privilege Escalation (XSA-241) | Nessus | Misc. | high |
| 103975 | Xen Hypervisor Pagetable De-typing Recursion Handling Guest-to-Host DoS (XSA-240) | Nessus | Misc. | high |
| 103974 | Xen Hypervisor I/O Intercept Code Hypervisor Stack Guest-to-Host Information Disclosure (XSA-239) | Nessus | Misc. | high |
| 103973 | Xen Hypervisor Multiple Functions DMOP Handling Guest-to-Host DoS (XSA-238) | Nessus | Misc. | high |
| 103972 | Xen Hypervisor PCI MSI Interrupt Setup Multiple Guest-to-Host Privilege Escalation (XSA-237) | Nessus | Misc. | high |
| 103927 | Citrix XenServer Multiple Vulnerabilities (CTX228867) | Nessus | Misc. | high |