Out-of-bounds read in OpenSC
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-2977 |
| CWE-ID | CWE-125 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
OpenSC Universal components / Libraries / Libraries used by multiple products |
| Vendor | OpenSC |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds read
EUVDB-ID: #VU77320
Risk: Low
CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]
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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOpenSC: 0.2.0 - 0.21.0 rc2
External linkshttp://github.com/OpenSC/OpenSC/issues/2785
http://access.redhat.com/security/cve/CVE-2023-2977
http://github.com/OpenSC/OpenSC/pull/2787
http://bugzilla.redhat.com/show_bug.cgi?id=2211088
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.
