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{}

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{"affected_release": [{"advisory": "RHSA-2023:3839", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "libssh-0:0.9.6-10.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-06-27T00:00:00Z"}, {"advisory": "RHSA-2023:3839", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "libssh-0:0.9.6-10.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-06-27T00:00:00Z"}, {"advisory": "RHSA-2024:0538", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "libssh-0:0.9.6-4.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-01-29T00:00:00Z"}, {"advisory": "RHSA-2023:6643", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "libssh-0:0.10.4-11.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6643", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "libssh-0:0.10.4-11.el9", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "libssh: authorization bypass in pki_verify_data_signature", "id": "2189736", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-287", "details": ["A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.", "A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK."], "name": "CVE-2023-2283", "package_state": [{"cpe": "cpe:/a:redhat:cloudforms_managementengine:5", "fix_state": "Out of support scope", "package_name": "libssh2", "product_name": "CloudForms Management Engine 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libssh2", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libssh", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libssh2", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2023-05-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-2283\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-2283\nhttps://www.libssh.org/security/advisories/CVE-2023-2283.txt"], "threat_severity": "Moderate"}