Gentoo update for OpenSC
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2023-2977 CVE-2023-4535 CVE-2023-40660 CVE-2023-40661 |
| CWE-ID | CWE-125 CWE-285 CWE-119 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Gentoo Linux Operating systems & Components / Operating system dev-libs/opensc Operating systems & Components / Operating system package or component |
| Vendor | Gentoo |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Out-of-bounds read
EUVDB-ID: #VU77320
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-2977
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the cardos_have_verifyrc_package() function in pkcs15 cardos_have_verifyrc_package. A local user can pass a smart card package with malformed ASN1 context to the application, trigger an out-of-bounds read error and read contents of memory on the system.
MitigationUpdate the affected packages.
dev-libs/opensc to version: 0.24.0
Gentoo Linux: All versions
dev-libs/opensc: before 0.24.0
CPE2.3- cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
- cpe:2.3:o:gentoo:dev-libs_opensc:*:*:*:*:*:gentoo_linux:*:*
https://security.gentoo.org/glsa/202412-15
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Out-of-bounds read
EUVDB-ID: #VU82975
Risk: Low
CVSSv4.0: 0.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-4535
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the MyEID driver when handling symmetric key encryption. An attacker with physical access to the system can use a specially crafted USB device to trigger an out-of-bounds read error and gain access to potentially sensitive information.
Update the affected packages.
dev-libs/opensc to version: 0.24.0
Gentoo Linux: All versions
dev-libs/opensc: before 0.24.0
CPE2.3- cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
- cpe:2.3:o:gentoo:dev-libs_opensc:*:*:*:*:*:gentoo_linux:*:*
https://security.gentoo.org/glsa/202412-15
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Improper Authorization
EUVDB-ID: #VU82973
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-40660
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows an attacker to bypass authorization process.
The vulnerability exists due to a logic error in the authorization process. 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. An attacker with physical proximity to the system can bypass the OS logon/screen for small permanently connected tokens to computers.
MitigationUpdate the affected packages.
dev-libs/opensc to version: 0.24.0
Gentoo Linux: All versions
dev-libs/opensc: before 0.24.0
CPE2.3- cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
- cpe:2.3:o:gentoo:dev-libs_opensc:*:*:*:*:*:gentoo_linux:*:*
https://security.gentoo.org/glsa/202412-15
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Buffer overflow
EUVDB-ID: #VU82974
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-40661
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows an attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. An attacker with physical access to the system can trigger memory corruption and execute arbitrary code with elevated privileges.
Update the affected packages.
dev-libs/opensc to version: 0.24.0
Gentoo Linux: All versions
dev-libs/opensc: before 0.24.0
CPE2.3- cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
- cpe:2.3:o:gentoo:dev-libs_opensc:*:*:*:*:*:gentoo_linux:*:*
https://security.gentoo.org/glsa/202412-15
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
