CVE-2023-4535
Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys
02 Description
Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.52% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.0% of scored records. A rank, not a probability.
- NVD base score
- 3.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-11-06 16:57Z2 YR AGO
- Last updated
- 2025-11-21 06:36Z11 MO AGO
- Reserved
- 2023-08-25
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.5)
- CNA CVSS vector
- CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.2
- Document digest
- 5942f7f6ea8c3a2ff8cef96affb915989a987a7b0c68cc90de3b07e5273c800c
05 Affected products
06 References
- access.redhat.comRHSA-2023:7879https://access.redhat.com/errata/RHSA-2023:7879
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4535
- bugzilla.redhat.comRHBZ#2240914https://bugzilla.redhat.com/show_bug.cgi?id=2240914
- github.comhttps://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
- github.comhttps://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
- github.comhttps://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
- github.comhttps://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CPQOMCDWFRBMEFR5VK4N5MMXXU42ODE/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLYEFIBBA37TK3UNMZN5NOJ7IWCIXLQP/
07 Fixed in
AlmaLinux 9
- opensc Fixed in 0.23.0-3.el9_3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- opensc Fixed in 0.23.0-3.el9_3
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- opensc Fixed in 0.23.0-0.3+deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- opensc Fixed in 0.23.0-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- opensc Fixed in 0.23.0-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.