CVE-2017-17563 — Improper Restriction of Operations within the Bounds of a Memory Buffer in XEN

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer7 documents6 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 80.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedDec 12
Latest updateMay 14

Description

An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.

CVSS vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HExploitability: 1.1 | Impact: 6.0

Affected Packages3 packages

▶debiandebian/xen< xen 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 (bookworm)
▶Debianxen/xen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5+3
▶NVDxen/xen4.9.1

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-6mhv-9623-3chf: An issue was discovered in Xen through 4↗2022-05-14
▶
OSV
CVE-2017-17563: An issue was discovered in Xen through 4↗2017-12-12
▶

📋Vendor Advisories

2
Red Hat
xen: broken x86 shadow mode refcount overflow check (XSA-249)↗2017-12-12
▶
Debian
CVE-2017-17563: xen - An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a ...↗2017
▶

💬Community

2
Bugzilla
CVE-2017-17563 CVE-2017-17564 CVE-2017-17565 CVE-2017-17566 xen: various flaws [fedora-all]↗2017-12-12
▶
Bugzilla
CVE-2017-17563 xsa249 xen: broken x86 shadow mode refcount overflow check (XSA-249)↗2017-11-29
▶