National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-10702 Detail

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.

Source:  MITRE

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: N/A
NVD score not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score: 5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10702
https://git.qemu.org/?p=qemu.git;a=commit;h=de0b1bae6461f67243282555475f88b2384a1eb9

Weakness Enumeration

CWE-ID CWE Name Source
CWE-325 Missing Required Cryptographic Step Red Hat, Inc.  

Quick Info

CVE Dictionary Entry:
CVE-2020-10702
NVD Published Date:
06/04/2020
NVD Last Modified:
06/04/2020