Out-of-Bounds Affecting qemu package, versions <2.0.0+dfsg-2ubuntu1.22


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.86% (83rd percentile)

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  • Snyk ID SNYK-UBUNTU1404-QEMU-428257
  • published 7 Apr 2016
  • disclosed 7 Apr 2016

How to fix?

Upgrade Ubuntu:14.04 qemu to version 2.0.0+dfsg-2ubuntu1.22 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

4.9 medium
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    Low