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CVE Record

CVE-2024-45617: Libopensc: uninitialized values after incorrect or missing checking return values of functions in libopensc

A vulnerability was found in OpenSC, OpenSC tools, PKCS#11 module, minidriver, and CTK. An attacker could use a crafted USB Device or Smart Card, which would present the system with a specially crafted response to APDUs. Insufficient or missing checking of return values of functions leads to unexpected work with variables that have not been initialized.

LowCVSS 3.9Not KEV-listedUpdated
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

This is a low-severity OpenSC flaw where a malicious smart card or USB device could trigger unreliable handling of uninitialized data. Business impact is limited by the need for physical device/card interaction and high attack complexity, but environments using smart-card authentication should still track vendor fixes.

Executive priority

Handle through normal vulnerability management unless smart-card authentication is critical or widely deployed. Prioritize exposed authentication workstations and shared systems where untrusted physical devices could be introduced.

Technical view

OpenSC components, including tools, PKCS#11 module, minidriver, CTK, and libopensc, may fail to check function return values before using variables. Crafted APDU responses from a USB device or smart card could affect confidentiality, integrity, and availability at low impact levels.

Likely exposure

Most relevant exposure is on systems that use OpenSC with smart cards, USB tokens, or PKCS#11 workflows. The bundle lists Red Hat Enterprise Linux 7, 8, 9, and 10 opensc packages as affected.

Exploitation context

The CVSS vector is physical, high complexity, no privileges, and no user interaction. The source bundle does not identify active exploitation, and the CVE is not listed as KEV.

Researcher notes

Evidence supports a CWE-457 uninitialized-variable issue caused by insufficient return-value checking after APDU responses. The provided data does not include exploit details, a universal fixed version, or confirmed exploitation.

Mitigation direction

  • Check Red Hat, Debian, and OpenSC guidance for fixed opensc packages.
  • Apply vendor-provided OpenSC or opensc updates when available.
  • Restrict use of untrusted smart cards and USB authentication devices.
  • Prioritize systems where smart-card authentication is enabled.
  • Document any compensating controls for physical device access.

Validation and detection

  • Inventory systems with OpenSC, libopensc, PKCS#11, minidriver, or CTK installed.
  • Confirm affected RHEL 7, 8, 9, and 10 opensc package status.
  • Review smart-card and USB-token use cases on sensitive endpoints.
  • Check vendor advisories for installed fixed package versions.
  • Confirm no unsupported assumptions about exploitability or remediation.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-457: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-45617 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Low
CVSS
3.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
2ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
3.9CVSS 3.1LowCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L0.53.4redhat

Vulnerability scoring details

Base CVSS 3.1 score

3.9Low
CVSS 3.1 vector shape for CVE-2024-45617Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorlibopensclibopensc, 0unaffected
Red HatRed Hat Enterprise Linux 10openscaffected
Red HatRed Hat Enterprise Linux 7openscaffected
Red HatRed Hat Enterprise Linux 8openscaffected
Red HatRed Hat Enterprise Linux 9openscaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-457 · source CWE mapping

Use of Uninitialized Variable

Use of Uninitialized Variable represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.