Description
An issue was discovered in drivers/xen/balloon.c in the Linux kernel before 5.2.3, as used in Xen through 4.12.x, allowing guest OS users to cause a denial of service because of unrestricted resource consumption during the mapping of guest memory, aka CID-6ef36ab967c7.
References (8)
Core 8
Core References
Various Sources x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-300.html
Third Party Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3
Vendor Advisory x_refsource_misc
https://xenbits.xen.org/xsa/advisory-300.html
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/6ef36ab967c71690ebe7e5ef997a8be4da3bc844
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/10/25/9
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191031-0005/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4286-2/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4286-1/
Scores
CVSS v3
6.5
EPSS
0.0009
EPSS Percentile
24.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Details
CWE
CWE-770
Status
published
Products (2)
linux/linux_kernel
< 5.2.3
xen/xen
< 4.12.1
Published
Oct 08, 2019
Tracked Since
Feb 18, 2026