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CVSS: 7.2EPSS: 0%CPEs: 3EXPL: 0

06 Nov 2023 — 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 compromis... • http://www.openwall.com/lists/oss-security/2023/12/13/2 • CWE-287: Improper Authentication •

CVSS: 4.5EPSS: 0%CPEs: 6EXPL: 0

06 Nov 2023 — An out-of-bounds read vulnerability was found in OpenSC packages within the MyEID driver when handling symmetric key encryption. Exploiting this flaw requires an attacker to have physical access to the computer and a specially crafted USB device or smart card. This flaw allows the attacker to manipulate APDU responses and potentially gain unauthorized access to sensitive data, compromising the system's security. Se encontró una vulnerabilidad de lectura fuera de los límites en los paquetes OpenSC dentro del... • https://access.redhat.com/errata/RHSA-2023:7879 • CWE-125: Out-of-bounds Read •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

22 Aug 2023 — Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs. Vulnerabilidad de desbordamiento de pila en el middleware de tarjetas inteligentes OpenSC anterior a 0.23 a través de respuestas a APDUs manipuladas. • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719 • CWE-787: Out-of-bounds Write •

CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0

01 Jun 2023 — 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. • https://access.redhat.com/security/cve/CVE-2023-2977 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •

CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0

18 Apr 2022 — A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo. Se ha encontrado un problema de doble liberación de la pila en Opensc versiones anteriores a 0.22.0, en la función sc_pkcs15_free_tokeninfo Multiple vulnerabilities have been discovered in OpenSC, the worst of which could result in the execution of arbitrary code. Versions less than 0.22.0 are affected. • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185 • CWE-415: Double Free CWE-672: Operation on a Resource after Expiration or Release •

CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 0

18 Apr 2022 — A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid. Se encontró un problema de uso de memoria previamente liberada de la pila en Opensc versiones anteriores a 0.22.0, en la función sc_file_valid Multiple vulnerabilities have been discovered in OpenSC, the worst of which could result in the execution of arbitrary code. Versions less than 0.22.0 are affected. • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843 • CWE-416: Use After Free •

CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 0

18 Apr 2022 — 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. Se han encontrado problemas de desbordamiento del búfer de la pila en Opensc versiones anteriores a 0.22.0 en el archivo pkcs15-oberthur.c que podrían bloquear los programas usando la biblioteca Multiple vulnerabilities have been discovered in OpenSC, the worst of which could result in the execution of arbitrary code. Versions less than 0.22.0 are affected. • https://bugzilla.redhat.com/show_bug.cgi?id=2016439 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 0

18 Apr 2022 — 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. Se ha encontrado un problema de tipo use after return En Opensc versiones anteriores a 0.22.0, en la función insert_pin que podría bloquear los programas que usan la biblioteca It was discovered that OpenSC did not correctly handle certain memory operations, which could lead to a use-after-free vulnerability. An attacker could possibly use this issue to cause a d... • https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383 • CWE-252: Unchecked Return Value •

CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0

18 Apr 2022 — Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library. Se han encontrado problemas de desbordamiento del buffer de pila en Opensc versiones anteriores a 0.22.0, en varios lugares que podrían bloquear los programas usando la biblioteca It was discovered that OpenSC did not correctly handle certain memory operations, which could lead to a use-after-free vulnerability. An attacker could possibly use this issue to cause ... • https://bugzilla.redhat.com/show_bug.cgi?id=2016448 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVSS: 6.4EPSS: 0%CPEs: 3EXPL: 0

06 Oct 2020 — The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file. El controlador de software de la tarjeta inteligente Oberthur en OpenSC versiones anteriores a 0.21.0-rc1, presenta un desbordamiento en la región stack de la memoria en la función sc_oberthur_read_file The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authe... • http://www.openwall.com/lists/oss-security/2020/11/24/4 • CWE-787: Out-of-bounds Write •