// For flags

CVE-2024-45620

Libopensc: incorrect handling of the length of buffers or files in pkcs15init

Severity Score

3.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A vulnerability was found in the pkcs15-init tool in OpenSC. An attacker could use a crafted USB Device or Smart Card, which would present the system with a specially crafted response to APDUs. When buffers are partially filled with data, initialized parts of the buffer can be incorrectly accessed.

This update for opensc fixes the following issues. Incorrect handling of the length of buffers or files in pkcs15init. Incorrect handling length of buffers or files in libopensc. Uninitialized values after incorrect or missing checking return values of functions in pkcs15init. Uninitialized values after incorrect or missing checking return values of functions in libopensc. Uninitialized values after incorrect check or usage of APDU response values in libopensc. Usage of uninitialized values in libopensc and pkcs15init. Heap buffer overflow in OpenPGP driver when generating key.

*Credits: Red Hat would like to thank Matteo Marini (Sapienza University of Rome) for reporting this issue.
CVSS Scores
Attack Vector
Physical
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-09-02 CVE Reserved
  • 2024-09-03 CVE Published
  • 2024-12-26 CVE Updated
  • 2025-06-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Opensc Project
Search vendor "Opensc Project"
 Opensc
Search vendor "Opensc Project" for product "Opensc"
*-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
*-
Affected
Redhat
Search vendor "Redhat"
 Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
*-
Affected
Suse
Search vendor "Suse"
 Sle-module-basesystem
Search vendor "Suse" for product "Sle-module-basesystem"
*-
Affected
Suse
Search vendor "Suse"
 Sle Hpc
Search vendor "Suse" for product "Sle Hpc"
*-
Affected
Suse
Search vendor "Suse"
 Sled
Search vendor "Suse" for product "Sled"
*-
Affected
Suse
Search vendor "Suse"
 Sles
Search vendor "Suse" for product "Sles"
*-
Affected
Suse
Search vendor "Suse"
 Sles Sap
Search vendor "Suse" for product "Sles Sap"
*-
Affected