Use After Free Affecting qemu-img package, versions <15:4.2.0-59.module+el8.5.0+12817+cb650d43


Severity

Recommended
medium

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.05% (22nd percentile)

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  • Snyk ID SNYK-CENTOS8-QEMUIMG-2134145
  • published 26 Jul 2021
  • disclosed 16 Jul 2020

How to fix?

Upgrade Centos:8 qemu-img to version 15:4.2.0-59.module+el8.5.0+12817+cb650d43 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address.

CVSS Scores

version 3.1
Expand this section

NVD

3.3 low
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
Expand this section

Red Hat

3.8 low