Bug 2453122 (CVE-2025-66037) - CVE-2025-66037 OpenSC: OpenSC: Out-of-bounds read via crafted input
Summary: CVE-2025-66037 OpenSC: OpenSC: Out-of-bounds read via crafted input
Keywords:
Status: NEW
Alias: CVE-2025-66037
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2453188
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-30 18:02 UTC by OSIDB Bzimport
Modified: 2026-03-30 20:46 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-03-30 18:02:07 UTC 
OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, feeding a crafted input to the fuzz_pkcs15_reader harness causes OpenSC to perform an out-of-bounds heap read in the X.509/SPKI handling path. Specifically, sc_pkcs15_pubkey_from_spki_fields() allocates a zero-length buffer and then reads one byte past the end of that allocation. This issue has been patched in version 0.27.0.
Note You need to log in before you can comment on or make changes to this bug.