CVE-2024-45620: Libopensc: incorrect handling of the length of buffers or files in pkcs15init

Severity: low (CVSS 3.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-09-03 · updated 2026-06-30
Weakness: CWE-120

Description

A vulnerability was found in the pkcs15-init tool in OpenSC. An attacker could use a crafted USB Device or Smart Card, which would present the system with a specially crafted response to APDUs. When buffers are partially filled with data, initialized parts of the buffer can be incorrectly accessed.

Affected products

OpenSC: before 0.26.0 — fixed in 0.26.0
Red Hat Enterprise Linux: 7.0, 8.0, 9.0

How to fix

Upgrade to a fixed version: OpenSC 0.26.0. Check the vendor advisory for mitigations.

References

https://access.redhat.com/security/cve/CVE-2024-45620
https://bugzilla.redhat.com/show_bug.cgi?id=2309289
https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html

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