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CVE Vulnerabilities

CVE-2017-9374

Missing Release of Memory after Effective Lifetime

Published: Jun 16, 2017 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
2.3 LOW
AV:A/AC:M/Au:S/C:N/I:N/A:P
RedHat/V3
3 LOW
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Ubuntu
LOW
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-9374
CWEhttps://cwe.mitre.org/data/definitions/401.html

Memory leak in QEMU (aka Quick Emulator), when built with USB EHCI Emulation support, allows local guest OS privileged users to cause a denial of service (memory consumption) by repeatedly hot-unplugging the device.

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name Vendor Start Version End Version
Qemu Qemu * 2.8.1.1 (including)
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat OpenStack Platform 10.0 (Newton) RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat OpenStack Platform 11.0 (Ocata) RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat OpenStack Platform 8.0 (Liberty) RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat OpenStack Platform 9.0 (Mitaka) RedHat qemu-kvm-rhev-10:2.9.0-10.el7 *
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 RedHat qemu-kvm-rhev-10:2.9.0-14.el7 *
Qemu Ubuntu trusty *
Qemu Ubuntu xenial *
Qemu Ubuntu yakkety *
Qemu Ubuntu zesty *
Qemu-kvm Ubuntu precise/esm *

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References

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