VULNERABILITY INTELLIGENCE

CVE-2020-10702

CVSS score5.5 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2020-06-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

  • CWE-325: Missing Cryptographic Step

Primary references