CVE-2026-40528
LOW
1,0
Source: [email protected]
Attack Vector: physical
Attack Complexity: high
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
LOW
3,8
Source: [email protected]
Attack Vector: physical
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low
Description
AI Translation Available
OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During pkcs15-init invocation, a key value entry beginning with '=' followed by more than sizeof(keybuf) characters is copied into keybuf via memcpy without a length check, causing both stack and heap buffer overruns.
121
Stack-based Buffer Overflow
DraftCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Access Control
Other
Potential Impacts:
Modify Memory
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Other
Applicable Platforms
Languages:
Memory-Unsafe, C, C++
122
Heap-based Buffer Overflow
DraftCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Access Control
Other
Potential Impacts:
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Modify Memory
Other
Applicable Platforms
Languages:
Memory-Unsafe, C, C++
https://github.com/OpenSC/OpenSC/commit/0358817ec74aeca654f83e7709c7720b14c5db59
https://www.vulncheck.com/advisories/opensc-buffer-overrun-in-do-key-value-via-…