[pkg-opensc-maint] Bug#1055521: opensc: CVE-2023-40660

[Salvatore Bonaccorso]

Source: opensc
Version: 0.23.0-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for opensc.

CVE-2023-40660[0]:
| A flaw was found in OpenSC packages that allow a potential PIN
| bypass. When a token/card is authenticated by one process, it can
| perform cryptographic operations in other processes when an empty
| zero-length pin is passed. This issue poses a security risk,
| particularly for OS logon/screen unlock and for small, permanently
| connected tokens to computers. Additionally, the token can
| internally track login status. This flaw allows an attacker to gain
| unauthorized access, carry out malicious actions, or compromise the
| system without the user's awareness.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-40660
    https://www.cve.org/CVERecord?id=CVE-2023-40660
[1] https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
[2] https://github.com/OpenSC/OpenSC/wiki/CVE-2023-40660
[3] https://github.com/OpenSC/OpenSC/commit/868f76fb31255fd3fdacfc3e476452efeb61c3e7

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore