Description
An out-of-bounds read vulnerability was found in OpenSC packages within the MyEID driver when handling symmetric key encryption. Exploiting this flaw requires an attacker to have physical access to the computer and a specially crafted USB device or smart card. This flaw allows the attacker to manipulate APDU responses and potentially gain unauthorized access to sensitive data, compromising the system's security.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | opensc | 0.23.0-2 | — |
| Debian 13 | opensc | 0.23.0-2 | — |
| Debian 12 | opensc | 0.23.0-0.3+deb12u1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | opensc | 0.23.0-3.el9_3 | RHSA-2023:7879 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | opensc | 0.23.0-3.el9_3 | ALSA-2023:7879 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | opensc | 0.23.0-3.1 | openSUSE-SU-2024:13314-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | opensc | 0.24.0-r0 | — |
| Alpine v3.23 | opensc | 0.24.0-r0 | — |
| Alpine v3.22 | opensc | 0.24.0-r0 | — |
| Alpine v3.21 | opensc | 0.24.0-r0 | — |
| Alpine v3.20 | opensc | 0.24.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | opensc | 0.24.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | opensc | 0.23.0-3.amzn2023.0.2 | ALAS2023-2023-417 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | opensc | 0.25.1-3 | — |
| Azure Linux 2 (CBL-Mariner) | opensc | 0.23.0-2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | opensc | 0.23.0-3.el9_3 | ELSA-2023-7879 |
Advisories 6
- ALSA-2023:7879 Moderate: opensc security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:7879 Red Hat Security Advisory: opensc security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- openSUSE-SU-2024:13314-1 opensc-0.23.0-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2500 OpenSC: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 9, 2025
- ELSA-2023-7879 Moderate: opensc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Dec 19, 2023
- ALAS2023-2023-417 Moderate: opensc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 3, 2023
References
- RHSA-2023:7879 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-4535 vdb-entry
- RHBZ#2240914 issue-tracking
- https://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
- https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
- https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
- https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories