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    CVE-2011-2527

    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.

    Published:Jul 9, 2011
    Last Modified:Apr 11, 2025
    EPS:Jun 21, 2012
    EPSS Score:0.00088
    CVSS Score:2.1

    Affected Products

    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-3842 (CVSS 7.8) — A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write d…
    CVE-2026-12080 (CVSS 7.3) — A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the g…
    CVE-2026-3195 (CVSS 7.4) — A flaw was found in QEMU. When reading input audio in the virtio-snd device input callback, the `virtio_snd_pc…
    CVE-2026-3196 (CVSS 5.5) — An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A m…
    CVE-2025-54566 (CVSS 4.2) — hw/pci/pcie_sriov.c in QEMU through 10.0.3 has a migration state inconsistency, a related issue to CVE-2024-26…
    CVE-2025-54567 (CVSS 4.2) — hw/pci/pcie_sriov.c in QEMU through 10.0.3 mishandles the VF Enable bit write mask, a related issue to CVE-202…
    CVE-2024-6519 (CVSS 8.2) — A use-after-free vulnerability was found in the QEMU LSI53C895A SCSI Host Bus Adapter emulation. This issue ca…
    CVE-2024-8354 (CVSS 5.5) — A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when …

    References

    http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html
    http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html
    http://rhn.redhat.com/errata/RHSA-2011-1531.html
    http://secunia.com/advisories/45187
    http://secunia.com/advisories/45188
    http://secunia.com/advisories/45419
    http://secunia.com/advisories/47157
    http://secunia.com/advisories/47992
    http://ubuntu.com/usn/usn-1177-1
    http://www.openwall.com/lists/oss-security/2011/07/12/15
    http://www.openwall.com/lists/oss-security/2011/07/12/5
    http://www.osvdb.org/74752
    http://www.securityfocus.com/bid/48659
    https://bugs.launchpad.net/qemu/+bug/807893
    https://exchange.xforce.ibmcloud.com/vulnerabilities/68539
    https://www.debian.org/security/2011/dsa-2282
    http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html
    http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html
    http://rhn.redhat.com/errata/RHSA-2011-1531.html
    http://secunia.com/advisories/45187
    http://secunia.com/advisories/45188
    http://secunia.com/advisories/45419
    http://secunia.com/advisories/47157
    http://secunia.com/advisories/47992
    http://ubuntu.com/usn/usn-1177-1
    http://www.openwall.com/lists/oss-security/2011/07/12/15
    http://www.openwall.com/lists/oss-security/2011/07/12/5
    http://www.osvdb.org/74752
    http://www.securityfocus.com/bid/48659
    https://bugs.launchpad.net/qemu/+bug/807893
    https://exchange.xforce.ibmcloud.com/vulnerabilities/68539
    https://www.debian.org/security/2011/dsa-2282

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High