CVE-2020-26572

2020-10-0602:15:13

Debian Security Bug Tracker

security-tracker.debian.org

tcos

smart card

opensc

stack-based buffer overflow

unix

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

19.0%

JSON

The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.

OSVersionArchitecturePackageVersionFilename
Debian12allopensc< 0.21.0-1opensc_0.21.0-1_all.deb
Debian11allopensc< 0.21.0-1opensc_0.21.0-1_all.deb
Debian999allopensc< 0.21.0-1opensc_0.21.0-1_all.deb
Debian13allopensc< 0.21.0-1opensc_0.21.0-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	opensc	< 0.21.0-1	opensc_0.21.0-1_all.deb
Debian	11	all	opensc	< 0.21.0-1	opensc_0.21.0-1_all.deb
Debian	999	all	opensc	< 0.21.0-1	opensc_0.21.0-1_all.deb
Debian	13	all	opensc	< 0.21.0-1	opensc_0.21.0-1_all.deb