CVE-2023-40660
Opensc: potential pin bypass when card tracks its own login state
Summary
Opensc: potential pin bypass when card tracks its own login state
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-40660 opensc Fixed in: 0.21.0-1+deb11u1
References
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- report bugzilla.redhat.com
- report github.com
- web openwall.com
- web access.redhat.com
- web github.com
- web lists.debian.org
- web lists.debian.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org