TI-2012-02546 Aliases CVE-2012-2934 GHSA-48m3-5gf3-cq84

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly…

LOW 11Published 2012-12-03 · Updated 2024-08-06

Key facts

Attack vector: Local
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: —
Confidentiality · integrity · availability: None · None · Partial
Fix status: Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

Why it matters now

EPSS 0.00442 38th percentileScored 2026-11-07

Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:xen:xen:4.0.0:-:::::x64:*	4.0.0	Vulnerable	Xen
cpe:2.3:o:xen:xen:4.1.0:-:::::x64:*	4.1.0	Vulnerable	Xen

cpe:2.3:o:xen:xen:4.0.0:-:*:*:*:*:x64:* Versions 4.0.0 Vulnerable ·Xen
cpe:2.3:o:xen:xen:4.1.0:-:*:*:*:*:x64:* Versions 4.1.0 Vulnerable ·Xen

Remediation

Red Hat 1 advisory

RHSA-2012:0721 Released 2012-06-12 · Red Hat rating Important
kernel security update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-308.8.2.el5, kernel-2.6.18-308.8.2.el5.ia64, kernel-PAE-2.6.18-308.8.2.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-308.8.2.el5, kernel-PAE-2.6.18-308.8.2.el5, kernel-PAE-devel-2.6.18-308.8.2.el5 +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 5	Affected	No fix yet
Red Hat Enterprise Linux (v. 5 server)	Fixed	RHSA-2012:0721
Red Hat Enterprise Linux Desktop (v. 5 client)	Fixed	RHSA-2012:0721

Not affected: 2 products

Red Hat Enterprise Linux 6
Red Hat Enterprise MRG 2

Timeline

2026-10-02 Threatist record created from CVE-2012-2934
2026-10-03 Alias added: GHSA-48m3-5gf3-cq84

References

Patch 1

[Xen-announce] 20120612 [Xen-announce] Xen Security Advisory 9 (CVE-2012-2934) - PV guest host DoS (AMD erratum #121)

Advisory 4

Other 1

http://support.amd.com/us/Processor_TechDocs/25759.pdf

TI-2012-00210 The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix… CVSS 2.0HIGH 7.2
TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
TI-2015-04333 The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used… CVSS 2.0HIGH 9.3
TI-2015-06741 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows… CVSS 3.1CRITICAL 10.0
TI-2018-06436 A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures… CVSS 3.0HIGH 7.8
TI-2024-20522 x86: Incorrect logic for BTC/SRSO mitigations CVSS 3.1HIGH 7.5

See all 489 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences