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[email protected]CVE-2020-10702

HistoryJun 04, 2020 - 6:15 p.m.

CVE-2020-10702

2020-06-0418:15:14

CWE-325

[email protected]

web.nvd.nist.gov

qemu

pauth

arm

cve-2020-10702

security vulnerability

signature generation

nvd

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

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.

Affected configurations

Vulners

NVD

Node

qemuqemuRange≤4.0.0

qemuqemuRange≤5.0.0

VendorProductVersionCPE
qemuqemu*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
qemuqemu*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
qemu	qemu	*	cpe:2.3:a:qemu:qemu::::::::
qemu	qemu	*	cpe:2.3:a:qemu:qemu::::::::

CNA Affected

[
  {
    "product": "qemu",
    "vendor": "The QEMU Project",
    "versions": [
      {
        "status": "affected",
        "version": ">= 4.0.0, < 5.0.0"
      }
    ]
  }
]