opensc: Buffer overflow handling string concatention in tools/util.c:util_acl_to_str()
Published Sep 4, 2018
6.6
MEDIUMCVSS 3.0
EPSS 0.69%
Description
A buffer overflow when handling string concatenation in util_acl_to_str in tools/util.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.
Affected products
No data.
- ≤ 0.18.0
No data.
Red Hat Enterprise Linux 7
opensc-0:0.19.0-3.el7
Fixed · RHSA-2019:2154
Red Hat Enterprise Linux 8
opensc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | opensc-0:0.19.0-3.el7 | Fixed | RHSA-2019:2154 |
| Red Hat Enterprise Linux 8 | opensc | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.69% (0.00692) | 51.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.69% (0.00692) | 47.84th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00191) | 38.83th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00113) | 46.43th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.11% (0.00113) | 44.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00095) | 38.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.55% (0.01550) | 33.66th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.55% (0.01550) | 0.00th | v1 |
References (9)
- https://access.redhat.com/errata/RHSA-2019:2154 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-16418 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1628010 Issue Tracking
- https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-628c8445c4e7ae92bbc4be08ba11a4c3 x_refsource_MISCPatchThird Party Advisory
- https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 x_refsource_MISCPatchRelease NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-16418
- https://www.cve.org/CVERecord?id=CVE-2018-16418
- https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:2154 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-16418 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1628010 | Issue Tracking | |
| https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-628c8445c4e7ae92bbc4be08ba11a4c3 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1 | x_refsource_MISCPatchRelease NotesThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-16418 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-16418 | ||
| https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/ | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.