CVE-2015-4164 — XEN vulnerability

CWE-3996 documents6 sources
Severity
4.9MEDIUMNVD
EPSS
0.1%
top 77.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedJun 15
Latest updateMay 14

Description

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

CVSS vector

AV:L/AC:L/C:N/I:N/A:CExploitability: 3.9 | Impact: 6.9

Affected Packages3 packages

▶debiandebian/xen< xen 4.6.0-1 (bookworm)
▶Debianxen/xen< 4.6.0-1+3
▶NVDxen/xen36 versions+35

🔴Vulnerability Details

2
GHSA
GHSA-jg3g-vx8c-2j78: The compat_iret function in Xen 3↗2022-05-14
▶
OSV
CVE-2015-4164: The compat_iret function in Xen 3↗2015-06-15
▶

📋Vendor Advisories

2
Red Hat
xen: iret hypercall handler vulnerability (xsa-136)↗2015-06-11
▶
Debian
CVE-2015-4164: xen - The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a...↗2015
▶

💬Community

1
Bugzilla
CVE-2015-4164 xen: iret hypercall handler vulnerability (xsa-136)↗2015-06-01
▶