Description
The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file.
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 | 0.21.0-1 | — |
| Debian 13 | opensc | 0.21.0-1 | — |
| Debian 12 | opensc | 0.21.0-1 | — |
| Debian 9 | opensc | 0.16.0-3+deb9u2 | DLA-2832-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | opensc | 0.20.0-3ubuntu0.1~esm1 | USN-5281-1 |
| Ubuntu Pro 18.04 LTS | opensc | 0.17.0-3ubuntu0.1~esm1 | USN-5281-1 |
| Ubuntu Pro 16.04 LTS | opensc | 0.15.0-1ubuntu1+esm1 | USN-5281-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | opensc | 0.20.0-4.el8 | RHSA-2021:1600 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | opensc | 0.20.0-4.el8 | ALSA-2021:1600 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | opensc | 0.20.0-4.el8 | RLSA-2021:1600 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | opensc | 0.19.0-3.7.1 | SUSE-SU-2021:1168-1 |
| SLES 15 | opensc | 0.18.0-150000.3.23.1 | SUSE-SU-2022:1041-1 |
| SLES 12 SP5 | opensc | 0.13.0-3.11.1 | SUSE-SU-2021:0998-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | opensc | 0.18.0-150000.3.23.1 | SUSE-SU-2022:1041-1 |
| SLES for SAP 12 SP5 | opensc | 0.13.0-3.11.1 | SUSE-SU-2021:0998-1 |
| SLE HPC 15 | opensc | 0.18.0-150000.3.23.1 | SUSE-SU-2022:1041-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | opensc | 0.21.0-2.2 | openSUSE-SU-2024:11123-1 |
| openSUSE Leap 15.2 | opensc | 0.19.0-lp152.3.3.1 | openSUSE-SU-2021:0565-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | opensc | 0.21.0-r0 | — |
| Alpine v3.23 | opensc | 0.21.0-r0 | — |
| Alpine v3.22 | opensc | 0.21.0-r0 | — |
| Alpine v3.21 | opensc | 0.21.0-r0 | — |
| Alpine v3.20 | opensc | 0.21.0-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | opensc | 0.21.0-r0 | — |
| Alpine v3.18 | opensc | 0.21.0-r0 | — |
| Alpine v3.17 | opensc | 0.21.0-r0 | — |
| Alpine v3.16 | opensc | 0.21.0-r0 | — |
| Alpine v3.15 | opensc | 0.21.0-r0 | — |
| Alpine v3.14 | opensc | 0.21.0-r0 | — |
| Alpine v3.13 | opensc | 0.21.0-r0 | — |
| Alpine v3.12 | opensc | 0.20.0-r2 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | opensc | 0.19.0-5.amzn2.0.1 | ALAS2-2023-2262 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | opensc | 0.22.0-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | opensc | 0.20.0-4.el8 | ELSA-2021-1600 |
Advisories 13
- ALSA-2021:1600 Moderate: opensc security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:1600 Red Hat Security Advisory: opensc security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-5281-1 opensc vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-2832-1 opensc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1600 Moderate: opensc security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:11123-1 opensc-0.21.0-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0998-1 Security update for opensc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1168-1 Security update for opensc SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0565-1 Security update for opensc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:1041-1 Security update for opensc SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2404 OpenSC: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 20, 2023
- ALAS2-2023-2262 Moderate: opensc security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 20, 2023
- ELSA-2021-1600 Moderate: opensc security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316
- https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e
- [oss-security] 20201124 OpenSC 0.21.0 released mailing-list
- FEDORA-2020-7c80831ffe vendor-advisory
- [debian-lts-announce] 20211129 [SECURITY] [DLA 2832-1] opensc security update mailing-list