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{"id": "RH:CVE-2020-26572", "vendorId": null, "type": "redhatcve", "bulletinFamily": "info", "title": "CVE-2020-26572", "description": "The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.\n#### Mitigation\n\nThis flaw can be mitigated in cases where you can use opensc without the TCOS driver enabled. In such cases, the vulnerable driver can be disabled by specifying them in /etc/opensc.conf card_drivers field in allowlist fashion. \nOne such example: \n\n \n \n app default { \n card_drivers = cac, cac1, PIV-II; \n } \n \n\nThis would only enable the cac, cac1, and PIV-II smart card drivers, and all others would be disabled, including the TCOS driver. With the TCOS driver disabled, this flaw is mitigated. It is important to list all drivers that you need in the card_drivers field so that they are not disabled too. \n\n", "published": "2020-10-07T11:07:52", "modified": "2023-04-06T07:57:04", "epss": [{"cve": "CVE-2020-26572", "epss": 0.0005, "percentile": 0.16384, "modified": "2023-06-06"}], "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1}, "severity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM"}, "exploitabilityScore": 1.8, "impactScore": 3.6}, "href": "https://access.redhat.com/security/cve/cve-2020-26572", "reporter": "redhat.com", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-26572\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-26572", "https://bugzilla.redhat.com/show_bug.cgi?id=1885954"], "cvelist": ["CVE-2020-26572"], "immutableFields": [], "lastseen": "2023-06-06T15:07:04", "viewCount": 5, "enchantments": {"dependencies": {"references": [{"type": "almalinux", "idList": ["ALSA-2021:1600"]}, {"type": "alpinelinux", "idList": ["ALPINE:CVE-2020-26572"]}, {"type": "archlinux", "idList": ["ASA-202011-27"]}, {"type": "cve", "idList": ["CVE-2020-26572"]}, {"type": "debian", "idList": ["DEBIAN:DLA-2832-1:1A39F"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2020-26572"]}, {"type": "fedora", "idList": ["FEDORA:5699B301DAEF"]}, {"type": "mageia", "idList": ["MGASA-2021-0037"]}, {"type": "nessus", "idList": ["ALMA_LINUX_ALSA-2021-1600.NASL", "CENTOS8_RHSA-2021-1600.NASL", "DEBIAN_DLA-2832.NASL", "EULEROS_SA-2021-1158.NASL", "EULEROS_SA-2022-1752.NASL", "NEWSTART_CGSL_NS-SA-2022-0062_OPENSC.NASL", "OPENSUSE-2021-565.NASL", "ORACLELINUX_ELSA-2021-1600.NASL", "REDHAT-RHSA-2021-1600.NASL", "SUSE_SU-2021-0998-1.NASL", "SUSE_SU-2021-1168-1.NASL", "SUSE_SU-2022-1041-1.NASL"]}, {"type": "oraclelinux", "idList": ["ELSA-2021-1600"]}, {"type": "osv", "idList": ["OSV:DLA-2832-1"]}, {"type": "redhat", "idList": ["RHSA-2021:1600"]}, {"type": "rocky", "idList": ["RLSA-2021:1600"]}, {"type": "suse", "idList": ["OPENSUSE-SU-2021:0565-1"]}, {"type": "ubuntu", "idList": ["USN-5281-1"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2020-26572"]}, {"type": "veracode", "idList": ["VERACODE:28062"]}]}, "score": {"value": 2.8, "vector": "NONE"}, "backreferences": {"references": [{"type": "almalinux", "idList": ["ALSA-2021:1600"]}, {"type": "archlinux", "idList": ["ASA-202011-27"]}, {"type": "cve", "idList": ["CVE-2020-26572"]}, {"type": "debian", "idList": ["DEBIAN:DLA-2832-1:1A39F"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2020-26572"]}, {"type": "fedora", "idList": ["FEDORA:5699B301DAEF"]}, {"type": "nessus", "idList": ["CENTOS8_RHSA-2021-1600.NASL", "DEBIAN_DLA-2832.NASL", "EULEROS_SA-2021-1158.NASL", "ORACLELINUX_ELSA-2021-1600.NASL", "REDHAT-RHSA-2021-1600.NASL"]}, {"type": "oraclelinux", "idList": ["ELSA-2021-1600"]}, {"type": "redhat", "idList": ["RHSA-2021:1600"]}, {"type": "suse", "idList": ["OPENSUSE-SU-2021:0565-1"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2020-26572"]}]}, "exploitation": null, "epss": [{"cve": "CVE-2020-26572", "epss": 0.0005, "percentile": 0.16331, "modified": "2023-05-07"}], "vulnersScore": 2.8}, "_state": {"dependencies": 1686076075, "score": 1686064494, "epss": 0}, "_internal": {"score_hash": "f82ad6864db65cf774c39da8c89e7d82"}, "vendorCvss": {"score": "6.4", "vector": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}}

{"veracode": [{"lastseen": "2022-07-26T16:58:12", "description": "opensc is vulnerable to denial of service. 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OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* opensc: heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570)\n\n* opensc: stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571)\n\n* opensc: stack-based buffer overflow in tcos_decipher (CVE-2020-26572)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", 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card.\n\nReferences\n==========\n\nhttps://bugs.archlinux.org/task/68195\nhttps://github.com/OpenSC/OpenSC/releases/tag/0.21.0\nhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24316\nhttps://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e\nhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20612\nhttps://github.com/OpenSC/OpenSC/commit/ed55fcd2996930bf58b9bb57e9ba7b1f3a753c43\nhttps://github.com/OpenSC/OpenSC/commit/f49162af0476723a0f72ca66c9ce6dd5bf38807d\nhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967\nhttps://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817\nhttps://security.archlinux.org/CVE-2020-26570\nhttps://security.archlinux.org/CVE-2020-26571\nhttps://security.archlinux.org/CVE-2020-26572", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", 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OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* opensc: heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570)\n\n* opensc: stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571)\n\n* opensc: stack-based buffer overflow in tcos_decipher (CVE-2020-26572)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-18T05:37:30", "type": "almalinux", "title": "Moderate: opensc security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2023-03-13T16:34:08", "id": "ALSA-2021:1600", "href": "https://errata.almalinux.org/8/ALSA-2021-1600.html", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}}], "oraclelinux": [{"lastseen": "2021-07-28T14:24:48", "description": "[0.20.0-4]\n- Use file cache by default (#1892810)\n- Avoid calloc with 0 argument (#1895401)\n[0.20.0-3]\n- Support PIN change for HID Alt tokens (#1830901)\n- Fix CVE-2020-26570, CVE-2020-26571 and CVE-2020-26572\n- Fix right padding of token labels of some cards (#1877973)", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 5.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-05-25T00:00:00", "type": "oraclelinux", "title": "opensc security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2021-05-25T00:00:00", "id": "ELSA-2021-1600", "href": "http://linux.oracle.com/errata/ELSA-2021-1600.html", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}}], "mageia": [{"lastseen": "2023-06-06T16:28:09", "description": "The Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570). The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571). The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher (CVE-2020-26572). \n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-01-17T16:07:01", "type": "mageia", "title": "Updated opensc packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2021-01-17T16:07:01", "id": "MGASA-2021-0037", "href": "https://advisories.mageia.org/MGASA-2021-0037.html", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}}], "fedora": [{"lastseen": "2023-06-06T15:26:40", "description": "OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitate their use in security applications such as authentication, mail encryption and digital signatures. OpenSC implements the PKCS#11 API so applications supporting this API (such as Mozilla Firefox and Thunderbird) can use it. On the card OpenSC implements the PKCS#15 standard and aims to be compatible w ith every software/card that does so, too. ", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2020-12-12T01:05:22", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: opensc-0.21.0-1.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2020-12-12T01:05:22", "id": "FEDORA:5699B301DAEF", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}}], "rocky": [{"lastseen": "2023-07-24T17:29:39", "description": "An update is available for opensc.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list\nThe OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic operations and enables their use for authentication, mail encryption, or digital signatures.\n\nSecurity Fix(es):\n\n* opensc: heap-based buffer overflow in sc_oberthur_read_file (CVE-2020-26570)\n\n* opensc: stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init (CVE-2020-26571)\n\n* opensc: stack-based buffer overflow in tcos_decipher (CVE-2020-26572)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 5.5, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-05-18T05:37:30", "type": "rocky", "title": "opensc security, bug fix, and enhancement update", "bulletinFamily": "unix", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2021-05-18T05:37:30", "id": "RLSA-2021:1600", "href": "https://errata.rockylinux.org/RLSA-2021:1600", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:N/I:N/A:P"}}], "ubuntu": [{"lastseen": "2023-06-13T15:00:38", "description": "## Releases\n\n * Ubuntu 20.04 LTS\n * Ubuntu 18.04 ESM\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * opensc \\- Smart card utilities with support for PKCS#15 compatible cards\n\nIt was discovered that some OpenSC smart card drivers mishandled memory \nwhen performing certain decoding operations. An attacker could possibly \nuse this issue to cause a denial of service or other unspecified impact. \nThis issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. \n(CVE-2019-15945, CVE-2019-15946)\n\nIt was discovered that some OpenSC smart card drivers had buffer overflow \nvulnerabilities. An attacker could possibly use this issue to cause a \ndenial of service or other unspecified impact. \n(CVE-2020-26570, CVE-2020-26571, CVE-2020-26572)\n", "cvss3": {"exploitabilityScore": 0.5, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 6.4, "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-06-08T00:00:00", "type": "ubuntu", "title": "OpenSC vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-15945", "CVE-2019-15946", "CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2022-06-08T00:00:00", "id": "USN-5281-1", "href": "https://ubuntu.com/security/notices/USN-5281-1", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}], "debian": [{"lastseen": "2022-03-26T18:42:32", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2832-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Adrian Bunk\nNovember 29, 2021 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : opensc\nVersion : 0.16.0-3+deb9u2\nCVE ID : CVE-2019-15945 CVE-2019-15946 CVE-2019-19479 CVE-2020-26570 \n CVE-2020-26571 CVE-2020-26572\nDebian Bug : 939668 939669 947383 972035 972036 972037\n\nSeveral vulnerabilities were fixed in the OpenSC smart card utilities.\n\nCVE-2019-15945\n\n Out-of-bounds access of an ASN.1 Bitstring.\n\nCVE-2019-15946\n\n Out-of-bounds access of an ASN.1 Octet string.\n\nCVE-2019-19479\n\n Incorrect read operation in the Setec driver.\n\nCVE-2020-26570\n\n Heap-based buffer overflow in the Oberthur driver.\n\nCVE-2020-26571\n\n Stack-based buffer overflow in the GPK driver.\n\nCVE-2020-26572\n\n Stack-based buffer overflow in the TCOS driver.\n\nFor Debian 9 stretch, these problems have been fixed in version\n0.16.0-3+deb9u2.\n\nWe recommend that you upgrade your opensc packages.\n\nFor the detailed security status of opensc please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/opensc\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 0.5, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 6.4, "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-11-29T09:13:39", "type": "debian", "title": "[SECURITY] [DLA 2832-1] opensc security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-15945", "CVE-2019-15946", "CVE-2019-19479", "CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2021-11-29T09:13:39", "id": "DEBIAN:DLA-2832-1:1A39F", "href": "https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}], "osv": [{"lastseen": "2022-07-21T08:14:52", "description": "\nSeveral vulnerabilities were fixed in the OpenSC smart card utilities.\n\n\n* [CVE-2019-15945](https://security-tracker.debian.org/tracker/CVE-2019-15945)\nOut-of-bounds access of an ASN.1 Bitstring.\n* [CVE-2019-15946](https://security-tracker.debian.org/tracker/CVE-2019-15946)\nOut-of-bounds access of an ASN.1 Octet string.\n* [CVE-2019-19479](https://security-tracker.debian.org/tracker/CVE-2019-19479)\nIncorrect read operation in the Setec driver.\n* [CVE-2020-26570](https://security-tracker.debian.org/tracker/CVE-2020-26570)\nHeap-based buffer overflow in the Oberthur driver.\n* [CVE-2020-26571](https://security-tracker.debian.org/tracker/CVE-2020-26571)\nStack-based buffer overflow in the GPK driver.\n* [CVE-2020-26572](https://security-tracker.debian.org/tracker/CVE-2020-26572)\nStack-based buffer overflow in the TCOS driver.\n\n\nFor Debian 9 stretch, these problems have been fixed in version\n0.16.0-3+deb9u2.\n\n\nWe recommend that you upgrade your opensc packages.\n\n\nFor the detailed security status of opensc please refer to\nits security tracker page at:\n<https://security-tracker.debian.org/tracker/opensc>\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 0.5, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 6.4, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-11-29T00:00:00", "type": "osv", "title": "opensc - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.4, "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-26570", "CVE-2019-19479", "CVE-2019-15945", "CVE-2019-15946", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2022-07-21T05:53:57", "id": "OSV:DLA-2832-1", "href": "https://osv.dev/vulnerability/DLA-2832-1", "cvss": {"score": 4.4, "vector": "AV:L/AC:M/Au:N/C:P/I:P/A:P"}}], "amazon": [{"lastseen": "2023-09-21T13:01:41", "description": "**Issue Overview:**\n\nOpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c. (CVE-2019-15945)\n\nOpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry in libopensc/asn1.c. (CVE-2019-15946)\n\nAn issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-setcos.c has an incorrect read operation during parsing of a SETCOS file attribute. (CVE-2019-19479)\n\nOpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check. (CVE-2019-20792)\n\nThe Oberthur smart card software driver in OpenSC before 0.21.0-rc1 has a heap-based buffer overflow in sc_oberthur_read_file. (CVE-2020-26570)\n\nThe gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init. (CVE-2020-26571)\n\nThe TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher. (CVE-2020-26572)\n\n \n**Affected Packages:** \n\n\nopensc\n\n \n**Issue Correction:** \nRun _yum update opensc_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n aarch64: \n \u00a0\u00a0\u00a0 opensc-0.19.0-5.amzn2.0.1.aarch64 \n \u00a0\u00a0\u00a0 opensc-debuginfo-0.19.0-5.amzn2.0.1.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 opensc-0.19.0-5.amzn2.0.1.i686 \n \u00a0\u00a0\u00a0 opensc-debuginfo-0.19.0-5.amzn2.0.1.i686 \n \n src: \n \u00a0\u00a0\u00a0 opensc-0.19.0-5.amzn2.0.1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 opensc-0.19.0-5.amzn2.0.1.x86_64 \n \u00a0\u00a0\u00a0 opensc-debuginfo-0.19.0-5.amzn2.0.1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2019-15945](<https://access.redhat.com/security/cve/CVE-2019-15945>), [CVE-2019-15946](<https://access.redhat.com/security/cve/CVE-2019-15946>), [CVE-2019-19479](<https://access.redhat.com/security/cve/CVE-2019-19479>), [CVE-2019-20792](<https://access.redhat.com/security/cve/CVE-2019-20792>), [CVE-2020-26570](<https://access.redhat.com/security/cve/CVE-2020-26570>), [CVE-2020-26571](<https://access.redhat.com/security/cve/CVE-2020-26571>), [CVE-2020-26572](<https://access.redhat.com/security/cve/CVE-2020-26572>)\n\nMitre: [CVE-2019-15945](<https://vulners.com/cve/CVE-2019-15945>), [CVE-2019-15946](<https://vulners.com/cve/CVE-2019-15946>), [CVE-2019-19479](<https://vulners.com/cve/CVE-2019-19479>), [CVE-2019-20792](<https://vulners.com/cve/CVE-2019-20792>), [CVE-2020-26570](<https://vulners.com/cve/CVE-2020-26570>), [CVE-2020-26571](<https://vulners.com/cve/CVE-2020-26571>), [CVE-2020-26572](<https://vulners.com/cve/CVE-2020-26572>)\n", "cvss3": {"exploitabilityScore": 0.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 6.8, "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2023-09-13T23:44:00", "type": "amazon", "title": "Medium: opensc", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-15945", "CVE-2019-15946", "CVE-2019-19479", "CVE-2019-20792", "CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2023-09-20T19:39:00", "id": "ALAS2-2023-2262", "href": "https://alas.aws.amazon.com/AL2/ALAS-2023-2262.html", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "suse": [{"lastseen": "2022-11-10T08:10:26", "description": "An update that fixes 8 vulnerabilities is now available.\n\nDescription:\n\n This update for opensc fixes the following issues:\n\n - CVE-2019-15945: Fixed an out-of-bounds access of an ASN.1 Bitstring in\n decode_bit_string (bsc#1149746).\n - CVE-2019-15946: Fixed an out-of-bounds access of an ASN.1 Octet string\n in asn1_decode_entry (bsc#1149747)\n - CVE-2019-19479: Fixed an incorrect read operation during parsing of a\n SETCOS file attribute (bsc#1158256)\n - CVE-2019-19480: Fixed an improper free operation in\n sc_pkcs15_decode_prkdf_entry (bsc#1158307).\n - CVE-2019-20792: Fixed a double free in coolkey_free_private_data\n (bsc#1170809).\n - CVE-2020-26570: Fixed a buffer overflow in sc_oberthur_read_file\n (bsc#1177364).\n - CVE-2020-26571: Fixed a stack-based buffer overflow in gemsafe GPK smart\n card software driver (bsc#1177380)\n - CVE-2020-26572: Fixed a stack-based buffer overflow in tcos_decipher\n (bsc#1177378).\n\n This update was imported from the SUSE:SLE-15-SP1:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-565=1", "cvss3": {"exploitabilityScore": 0.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 6.8, "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2021-04-17T00:00:00", "type": "suse", "title": "Security update for opensc (moderate)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 4.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-15945", "CVE-2019-15946", "CVE-2019-19479", "CVE-2019-19480", "CVE-2019-20792", "CVE-2020-26570", "CVE-2020-26571", "CVE-2020-26572"], "modified": "2021-04-17T00:00:00", "id": "OPENSUSE-SU-2021:0565-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/JELZKRVEJGYE74DM3GTNHNTVZBQHK5DJ/", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}]}