Denial of Service (DoS) Affecting qemu-project/qemu package, versions [4.0.0,5.0.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006902
  • published26 Jan 2022
  • disclosed4 Jun 2020
  • creditUnknown

Introduced: 4 Jun 2020

CVE-2020-10702  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 5.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in version 4.0 and fixed in version 5.0.0. A general failure of the signature generation process caused every PAuth-enforced pointer to be signed with the same signature. A local attacker could obtain the signature of a protected pointer and abuse this flaw to bypass PAuth protection for all programs running on QEMU.

References

CVSS Scores

version 3.1