Opensc Project: Security Vulnerabilities
A flaw was found in OpenSC packages that allow a potential PIN bypass. When a token/card is authenticated by one process, it can perform cryptographic operations in other processes when an empty zero-length pin is passed. This issue poses a security risk, particularly for OS logon/screen unlock and for small, permanently connected tokens to computers. Additionally, the token can internally track login status. This flaw allows an attacker to gain unauthorized access, carry out malicious actions, or compromise the system without the user's awareness.
CVSS Score
6.6
EPSS Score
0.0
Published
2023-11-06
Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow
compromise key generation, certificate loading, and other card management operations during enrollment.
CVSS Score
5.4
EPSS Score
0.003
Published
2023-11-06
Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.
CVSS Score
7.5
EPSS Score
0.004
Published
2023-08-22
A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context. The cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags, where remaining length is wrongly caculated due to moved starting pointer. This leads to possible heap-based buffer oob read. In cases where ASAN is enabled while compiling this causes a crash. Further info leak or more damage is possible.
CVSS Score
7.1
EPSS Score
0.0
Published
2023-06-01
A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo.
CVSS Score
5.3
EPSS Score
0.002
Published
2022-04-18
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid.
CVSS Score
5.3
EPSS Score
0.0
Published
2022-04-18
A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.0
Published
2022-04-18
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.001
Published
2022-04-18
Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.001
Published
2022-04-18
The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init.
CVSS Score
5.5
EPSS Score
0.0
Published
2020-10-06