CVE-2020-10702

 

Published at: - 04-06-2020 08:15

Last modified: - 27-01-2023 07:56

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10702
• https://git.qemu.org/?p=qemu.git;a=commit;h=de0b1bae6461f67243282555475f88b2384a1eb9
• https://security.netapp.com/advisory/ntap-20200724-0007/

 

Keywords

NVD

 

CVE-2020-10702

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures