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{"affected_release": [{"advisory": "RHSA-2020:3915", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "libssh2-0:1.8.0-4.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-09-29T00:00:00Z"}, {"advisory": "RHSA-2021:0949", "cpe": "cpe:/a:redhat:openshift_do:1.0::el7", "package": "openshiftdo/odo-init-image-rhel7:1.1.3-2", "product_name": "Red Hat OpenShift Do", "release_date": "2021-03-22T00:00:00Z"}], "bugzilla": {"description": "libssh2: integer overflow in SSH_MSG_DISCONNECT logic in packet.c", "id": "1766898", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1766898"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "(CWE-190|CWE-200|CWE-400)", "details": ["In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server."], "name": "CVE-2019-17498", "package_state": [{"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:8", "fix_state": "Not affected", "package_name": "virt:rhel/libssh2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Will not fix", "package_name": "virt:8.0/libssh2", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}], "public_date": "2019-10-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-17498\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-17498\nhttps://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/"], "statement": "This flaw needs a malicious MITM SSH server. When an application compiled with libssh2 connects to such a MITM SSH server, the server can trigger an integer overflow leading to an OOB read in the SSH_MSG_DISCONNECT logic. This can cause the application compiled with libssh2 to crash. This is strictly a client side crash and the SSH server may not be affected.\nAlso note that when a user connects to a malicious MITM server there is already a risk of disclosing password/keys irrespective of the flaw.", "threat_severity": "Moderate"}