CVE-2020-29660

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

09/12/2020

Last modified:

07/11/2023

Description

A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

4.40

Severity 3.x

MEDIUM

Vector 2.0

AV:L/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

2.10

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.9.13 (including)
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::
cpe:2.3:o:broadcom:fabric_operating_system:-:::::::*
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:::::::*
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:::::::*
cpe:2.3:o:netapp:h410c_firmware:-:::::::*
cpe:2.3:h:netapp:h410c:-:::::::*
cpe:2.3:o:netapp:a700s_firmware:-:::::::*
cpe:2.3:h:netapp:a700s:-:::::::*
cpe:2.3:o:netapp:8300_firmware:-:::::::*
cpe:2.3:h:netapp:8300:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.9.13 (including)
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::
cpe:2.3:o:broadcom:fabric_operating_system:-:::::::*
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:::::::*
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:::::::*
cpe:2.3:o:netapp:h410c_firmware:-:::::::*
cpe:2.3:h:netapp:h410c:-:::::::*
cpe:2.3:o:netapp:a700s_firmware:-:::::::*
cpe:2.3:h:netapp:a700s:-:::::::*
cpe:2.3:o:netapp:8300_firmware:-:::::::*
cpe:2.3:h:netapp:8300:-:::::::*

CVE-2020-29660

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools