CVE-2020-10702CWE-325

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

Medium · published June 4, 2020

CVSS v3.1
5.5
EPSS
0%
Percentile
25.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00331 · 25.0th percentile
Weakness
CWE-325 · Missing Cryptographic Step
Published
2020-06-04T17:31Z
EPSS history
Timeline
  • 04 JUN 17:31Z
    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
    cvelistv5