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TI-2011-02219 Aliases CVE-2011-2527GHSA-6g2j-9xh2-rw37

The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not…

Priority LOW 12CWE-264Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · None · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.

Summary

The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop group privileges when the -runas option is used, which allows local guest users to access restricted files on the host.

Why it matters now

EPSS 0.00439 38th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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 · 57

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 0.14.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.0:*:*:*:*:*:*:*0.1.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.1:*:*:*:*:*:*:*0.1.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.2:*:*:*:*:*:*:*0.1.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.3:*:*:*:*:*:*:*0.1.3VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.4:*:*:*:*:*:*:*0.1.4VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.5:*:*:*:*:*:*:*0.1.5VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.1.6:*:*:*:*:*:*:*0.1.6VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.2.0:*:*:*:*:*:*:*0.2.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.3.0:*:*:*:*:*:*:*0.3.0VulnerableQEMU
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 0.14.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.0:*:*:*:*:*:*:* Versions 0.1.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.1:*:*:*:*:*:*:* Versions 0.1.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.2:*:*:*:*:*:*:* Versions 0.1.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.3:*:*:*:*:*:*:* Versions 0.1.3 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.4:*:*:*:*:*:*:* Versions 0.1.4 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.5:*:*:*:*:*:*:* Versions 0.1.5 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.1.6:*:*:*:*:*:*:* Versions 0.1.6 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.2.0:*:*:*:*:*:*:* Versions 0.2.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.3.0:*:*:*:*:*:*:* Versions 0.3.0 Vulnerable ·QEMU
Show 47 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:0.4.0:*:*:*:*:*:*:*0.4.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.4.1:*:*:*:*:*:*:*0.4.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.4.2:*:*:*:*:*:*:*0.4.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.4.3:*:*:*:*:*:*:*0.4.3VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.6.0:*:*:*:*:*:*:*0.6.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.6.1:*:*:*:*:*:*:*0.6.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.7.0:*:*:*:*:*:*:*0.7.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.7.1:*:*:*:*:*:*:*0.7.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.7.2:*:*:*:*:*:*:*0.7.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.8.0:*:*:*:*:*:*:*0.8.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.8.1:*:*:*:*:*:*:*0.8.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.8.2:*:*:*:*:*:*:*0.8.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.9.0:*:*:*:*:*:*:*0.9.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.9.1:*:*:*:*:*:*:*0.9.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.9.1-5:*:*:*:*:*:*:*0.9.1-5VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.0:*:*:*:*:*:*:*0.10.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.1:*:*:*:*:*:*:*0.10.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.2:*:*:*:*:*:*:*0.10.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.3:*:*:*:*:*:*:*0.10.3VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.4:*:*:*:*:*:*:*0.10.4VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.5:*:*:*:*:*:*:*0.10.5VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.10.6:*:*:*:*:*:*:*0.10.6VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0:*:*:*:*:*:*:*0.11.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0:rc0:*:*:*:*:*:*0.11.0 rc0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0:rc1:*:*:*:*:*:*0.11.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0:rc2:*:*:*:*:*:*0.11.0 rc2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0-rc0:*:*:*:*:*:*:*0.11.0-rc0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0-rc1:*:*:*:*:*:*:*0.11.0-rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.0-rc2:*:*:*:*:*:*:*0.11.0-rc2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.11.1:*:*:*:*:*:*:*0.11.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.0:*:*:*:*:*:*:*0.12.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.0:rc1:*:*:*:*:*:*0.12.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.0:rc2:*:*:*:*:*:*0.12.0 rc2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.1:*:*:*:*:*:*:*0.12.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.2:*:*:*:*:*:*:*0.12.2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.3:*:*:*:*:*:*:*0.12.3VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.4:*:*:*:*:*:*:*0.12.4VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.12.5:*:*:*:*:*:*:*0.12.5VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.13.0:*:*:*:*:*:*:*0.13.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.13.0:rc0:*:*:*:*:*:*0.13.0 rc0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.13.0:rc1:*:*:*:*:*:*0.13.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.14.0:rc0:*:*:*:*:*:*0.14.0 rc0VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.14.0:rc1:*:*:*:*:*:*0.14.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.14.0:rc2:*:*:*:*:*:*0.14.0 rc2VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.14.1:*:*:*:*:*:*:*0.14.1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.15.0:rc1:*:*:*:*:*:*0.15.0 rc1VulnerableQEMU
cpe:2.3:a:qemu:qemu:0.15.0:rc2:*:*:*:*:*:*0.15.0 rc2VulnerableQEMU
  • cpe:2.3:a:qemu:qemu:0.4.0:*:*:*:*:*:*:* Versions 0.4.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.4.1:*:*:*:*:*:*:* Versions 0.4.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.4.2:*:*:*:*:*:*:* Versions 0.4.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.4.3:*:*:*:*:*:*:* Versions 0.4.3 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.6.0:*:*:*:*:*:*:* Versions 0.6.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.6.1:*:*:*:*:*:*:* Versions 0.6.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.7.0:*:*:*:*:*:*:* Versions 0.7.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.7.1:*:*:*:*:*:*:* Versions 0.7.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.7.2:*:*:*:*:*:*:* Versions 0.7.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.8.0:*:*:*:*:*:*:* Versions 0.8.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.8.1:*:*:*:*:*:*:* Versions 0.8.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.8.2:*:*:*:*:*:*:* Versions 0.8.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.9.0:*:*:*:*:*:*:* Versions 0.9.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.9.1:*:*:*:*:*:*:* Versions 0.9.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.9.1-5:*:*:*:*:*:*:* Versions 0.9.1-5 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.0:*:*:*:*:*:*:* Versions 0.10.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.1:*:*:*:*:*:*:* Versions 0.10.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.2:*:*:*:*:*:*:* Versions 0.10.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.3:*:*:*:*:*:*:* Versions 0.10.3 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.4:*:*:*:*:*:*:* Versions 0.10.4 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.5:*:*:*:*:*:*:* Versions 0.10.5 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.10.6:*:*:*:*:*:*:* Versions 0.10.6 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0:*:*:*:*:*:*:* Versions 0.11.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0:rc0:*:*:*:*:*:* Versions 0.11.0 rc0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0:rc1:*:*:*:*:*:* Versions 0.11.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0:rc2:*:*:*:*:*:* Versions 0.11.0 rc2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0-rc0:*:*:*:*:*:*:* Versions 0.11.0-rc0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0-rc1:*:*:*:*:*:*:* Versions 0.11.0-rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.0-rc2:*:*:*:*:*:*:* Versions 0.11.0-rc2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.11.1:*:*:*:*:*:*:* Versions 0.11.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.0:*:*:*:*:*:*:* Versions 0.12.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.0:rc1:*:*:*:*:*:* Versions 0.12.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.0:rc2:*:*:*:*:*:* Versions 0.12.0 rc2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.1:*:*:*:*:*:*:* Versions 0.12.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.2:*:*:*:*:*:*:* Versions 0.12.2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.3:*:*:*:*:*:*:* Versions 0.12.3 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.4:*:*:*:*:*:*:* Versions 0.12.4 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.12.5:*:*:*:*:*:*:* Versions 0.12.5 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.13.0:*:*:*:*:*:*:* Versions 0.13.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.13.0:rc0:*:*:*:*:*:* Versions 0.13.0 rc0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.13.0:rc1:*:*:*:*:*:* Versions 0.13.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.14.0:rc0:*:*:*:*:*:* Versions 0.14.0 rc0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.14.0:rc1:*:*:*:*:*:* Versions 0.14.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.14.0:rc2:*:*:*:*:*:* Versions 0.14.0 rc2 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.14.1:*:*:*:*:*:*:* Versions 0.14.1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.15.0:rc1:*:*:*:*:*:* Versions 0.15.0 rc1 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:0.15.0:rc2:*:*:*:*:*:* Versions 0.15.0 rc2 Vulnerable ·QEMU

Remediation

Red Hat 1 advisory

  • RHSA-2011:1531 Released 2011-12-05 · Red Hat rating Moderate
    qemu-kvm security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) qemu-img-2:0.12.1.2-2.209.el6, qemu-kvm-2:0.12.1.2-2.209.el6, qemu-kvm-tools-2:0.12.1.2-2.209.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) qemu-img-2:0.12.1.2-2.209.el6, qemu-kvm-2:0.12.1.2-2.209.el6, qemu-kvm-tools-2:0.12.1.2-2.209.el6
    • Red Hat Enterprise Linux Server (v. 6) qemu-img-2:0.12.1.2-2.209.el6, qemu-kvm-2:0.12.1.2-2.209.el6, qemu-kvm-tools-2:0.12.1.2-2.209.el6
    • Red Hat Enterprise Linux Workstation (v. 6) qemu-img-2:0.12.1.2-2.209.el6, qemu-kvm-2:0.12.1.2-2.209.el6, qemu-kvm-tools-2:0.12.1.2-2.209.el6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:1531
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2011:1531
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1531
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:1531
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2527
  2. 2026-10-03 Alias added: GHSA-6g2j-9xh2-rw37

References

Advisory 5

Other 4

  • TI-2024-16148 QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI… CVSS 3.1HIGH 8.8
  • TI-2022-02736 Uncontrolled resource consumption in QEMU CVSS 3.1HIGH 7.8
  • TI-2023-02681 Qemu: 9pfs: improper access control on special files CVSS 3.1HIGH 7.1
  • TI-2019-09678 The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command… CVSS 3.0CRITICAL 9.8
  • TI-2024-03326 Qemu-kvm: net: assertion failure in update_sctp_checksum() CVSS 3.1MEDIUM 5.5
  • TI-2023-22631 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in… CVSS 3.1MEDIUM 5.5
See all 418 →

Sources

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