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TI-2013-01847 Aliases CVE-2013-2076GHSA-86c3-896f-hgp9

Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP…

Priority LOW 21CWE-200Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Complete · None · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.

Why it matters now

EPSS 0.00496 42nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 14

CPEVersionsRoleVendor
cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*4.0.0VulnerableXen
cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*4.0.1VulnerableXen
cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*4.0.2VulnerableXen
cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*4.0.3VulnerableXen
cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*4.0.4VulnerableXen
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*4.2.0VulnerableXen
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*4.2.1VulnerableXen
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*4.2.2VulnerableXen
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*4.1.0VulnerableXen
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*4.1.1VulnerableXen
  • cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:* Versions 4.2.2 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·Xen
Show 4 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*4.1.2VulnerableXen
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*4.1.3VulnerableXen
cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*4.1.4VulnerableXen
cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*4.1.5VulnerableXen
  • cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:* Versions 4.1.3 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:* Versions 4.1.4 Vulnerable ·Xen
  • cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:* Versions 4.1.5 Vulnerable ·Xen

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

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

Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-2076
  2. 2026-10-03 Alias added: GHSA-86c3-896f-hgp9

References

Advisory 3

Other 1

  • 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