CVE-2013-4361 — Sensitive Information Exposure in XEN

CWE-200 — Sensitive Information Exposure7 documents6 sources
Severity
2.1LOWNVD
EPSS
0.1%
top 70.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
XENDebian XEN
Timeline
PublishedOct 1
Latest updateMay 17

Description

The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.

CVSS vector

AV:L/AC:L/C:P/I:N/A:NExploitability: 3.9 | Impact: 2.9

Affected Packages3 packages

▶debiandebian/xen< xen 4.4.0-1 (bookworm)
▶Debianxen/xen< 4.4.0-1+3
▶NVDxen/xen23 versions+22

🔴Vulnerability Details

2
GHSA
GHSA-jmgg-m7r5-7296: The fbld instruction emulation in Xen 3↗2022-05-17
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OSV
CVE-2013-4361: The fbld instruction emulation in Xen 3↗2013-10-01
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📋Vendor Advisories

2
Red Hat
Kernel: Xen: Xsa-66: information leak through fbld instruction emulation↗2013-09-30
▶
Debian
CVE-2013-4361: xen - The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the corre...↗2013
▶

💬Community

2
Bugzilla
CVE-2013-4355 CVE-2013-4356 CVE-2013-4361 xen: various flaws [fedora-all]↗2013-09-30
▶
Bugzilla
CVE-2013-4361 Kernel: Xen: Xsa-66: information leak through fbld instruction emulation↗2013-09-19
▶