CVE-2018-15469 — Uncontrolled Resource Consumption in Linux

CWE-400 — Uncontrolled Resource ConsumptionCWE-665 — Improper Initialization7 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.2%
top 60.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
XENDebian XENDebian Linux
Timeline
PublishedAug 17
Latest updateMay 14

Description

An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HExploitability: 2.0 | Impact: 4.0

Affected Packages3 packages

▶debiandebian/xen< xen 4.11.1~pre.20180911.5acdd26fdc+dfsg-2 (bookworm)
▶Debianxen/xen< 4.11.1~pre.20180911.5acdd26fdc+dfsg-2+3
▶NVDxen/xen4.11.0

Also affects: Debian Linux 8.0

Patches

Patch: xenbits.xen.org ↗Patch: xenbits.xen.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-44v3-w2jc-h8pm: An issue was discovered in Xen through 4↗2022-05-14
▶
OSV
CVE-2018-15469: An issue was discovered in Xen through 4↗2018-08-17
▶

📋Vendor Advisories

2
Red Hat
xen: Use of v2 grant tables may cause crash on ARM (XSA-268)↗2018-08-14
▶
Debian
CVE-2018-15469: xen - An issue was discovered in Xen through 4.11.x. ARM never properly implemented gr...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-15469 xen: Use of v2 grant tables may cause crash on ARM (XSA-268) [fedora-all]↗2018-08-14
▶
Bugzilla
CVE-2018-15469 xen: Use of v2 grant tables may cause crash on ARM (XSA-268)↗2018-07-31
▶