Loop with Unreachable Exit Condition Affecting qemu-project/qemu package, versions [,6.0.0-rc0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006868
  • published28 Jun 2022
  • disclosed27 Jun 2022
  • creditAlexander Bulekov, Cheolwoo Myung, Ruhr-University Bochum

Introduced: 27 Jun 2022

CVE-2021-20257  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.0.0-rc0 or higher.

Overview

Affected versions of this package are vulnerable to Loop with Unreachable Exit Condition via the process_tx_desc function of the e1000 NIC emulator. Exploiting this vulnerability is possible when processing transmits (tx) descriptors in process_tx_desc while various descriptor fields are initialized with invalid values.

CVSS Scores

version 3.1