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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2023-06-01T00:00:00

Updated: 2024-08-02T06:41:04.019Z

Reserved: 2023-05-30T00:00:00

Link: CVE-2023-2977

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-06-01T01:15:17.917

Modified: 2024-11-21T07:59:40.960

Link: CVE-2023-2977

cve-icon Redhat

Severity : Low

Publid Date: 2023-05-30T00:00:00Z

Links: CVE-2023-2977 - Bugzilla