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{"acknowledgement": "Red Hat would like to thank fullwaywang (Tencent) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2023:7160", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "opensc-0:0.20.0-6.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-11-14T00:00:00Z"}, {"advisory": "RHSA-2023:6587", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "opensc-0:0.23.0-2.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "opensc: buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package", "id": "2211088", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2211088"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "verified"}, "cwe": "CWE-119", "details": ["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.", "A vulnerability was found in OpenSC. This issue causes a buffer overrun in the pkcs15 cardos_have_verifyrc_package. This flaw allows an attacker to supply a smart card package with a malformed ASN1 context. The cardos_have_verifyrc_package function scans the ASN1 buffer for two tags, where the remaining length is wrongly calculated due to a moved starting pointer, leading to a possible heap-based buffer out-of-bounds read. In cases where ASN is enabled while compiling, this problem causes a crash, and further information leaks or more damage is likely."], "name": "CVE-2023-2977", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2023-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-2977\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-2977"], "threat_severity": "Low"}