{"uuid": "2e98aa28-1ced-4a3d-b261-cf45a1be9473", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-2977", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/998", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-2977\n\ud83d\udd39 Description: 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.\n\ud83d\udccf Published: 2023-06-01T00:00:00\n\ud83d\udccf Modified: 2025-01-09T17:54:26.583Z\n\ud83d\udd17 References:\n1. https://access.redhat.com/security/cve/CVE-2023-2977\n2. https://bugzilla.redhat.com/show_bug.cgi?id=2211088\n3. https://github.com/OpenSC/OpenSC/issues/2785\n4. https://github.com/OpenSC/OpenSC/pull/2787\n5. https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html\n6. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LAR54OV6EHA56B4XJF6RNPQ4HJ2ITU66/\n7. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FJD4Q4AJSGE5UIJI7OUYZY4HGGCVYQNI/", "creation_timestamp": "2025-01-09T18:17:05.000000Z"}