CVE-2017-15593

MEDIUM

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

https://www.debian.org/security/2017/dsa-4050

https://xenbits.xen.org/xsa/advisory-242.html

Details

Source: MITRE

Published: 2017-10-18

Updated: 2018-10-30

Type: CWE-119

Risk Information

CVSS v2.0

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 v3.0

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

Tenable Plugins

View all (26 total)

ID	Name	Product	Family	Severity
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	high
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	high
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	high
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.	medium
103978	Xen Hypervisor Translated Guest Self-linear Shadow Mapping Handling Guest-to-Host Privilege Escalation (XSA-243)	Nessus	Misc.	medium
103977	Xen Hypervisor Page Type Reference Handling Memory Exhaustion Guest-to-Host DoS (XSA-242)	Nessus	Misc.	medium
103976	Xen Hypervisor TLB Flush Request Handling Race Condition System Memory Access Guest-to-Host Privilege Escalation (XSA-241)	Nessus	Misc.	medium
103975	Xen Hypervisor Pagetable De-typing Recursion Handling Guest-to-Host DoS (XSA-240)	Nessus	Misc.	medium
103974	Xen Hypervisor I/O Intercept Code Hypervisor Stack Guest-to-Host Information Disclosure (XSA-239)	Nessus	Misc.	medium
103973	Xen Hypervisor Multiple Functions DMOP Handling Guest-to-Host DoS (XSA-238)	Nessus	Misc.	medium
103972	Xen Hypervisor PCI MSI Interrupt Setup Multiple Guest-to-Host Privilege Escalation (XSA-237)	Nessus	Misc.	medium
103927	Citrix XenServer Multiple Vulnerabilities (CTX228867)	Nessus	Misc.	critical