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{"acknowledgement": "Red Hat would like to thank Hui Huang, Kailong Zhu, and Lu Yu for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:1811", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "libvncserver-0:0.9.11-17.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}], "bugzilla": {"description": "libvncserver: libvncserver/rfbserver.c has a divide by zero which could result in DoS", "id": "1896739", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1896739"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-369", "details": ["A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.", "A divide by zero flaw was found in libvncserver. This flaw allows a malicious client to send a specially crafted message that, when processed by the VNC server, leads to a floating-point exception, resulting in a denial of service. The highest threat from this vulnerability is to system availability."], "name": "CVE-2020-25708", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libvncserver", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "vino", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libvncserver", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "vino", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "vino", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2020-05-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-25708\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25708\nhttps://github.com/LibVNC/libvncserver/commit/673c07a75ed844d74676f3ccdcfdc706a7052dba\nhttps://github.com/LibVNC/libvncserver/issues/409"], "threat_severity": "Moderate", "upstream_fix": "libvncserver 0.9.13"}