Vulnerability Details CVE-2023-46849
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 53.6%
CVSS Severity
CVSS v3 Score 7.5
References
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
- https://www.debian.org/security/2023/dsa-5555
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
- https://www.debian.org/security/2023/dsa-5555
Products affected by CVE-2023-46849
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cpe:2.3:a:openvpn:openvpn:2.6.0
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cpe:2.3:a:openvpn:openvpn:2.6.1
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cpe:2.3:a:openvpn:openvpn:2.6.2
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cpe:2.3:a:openvpn:openvpn:2.6.3
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cpe:2.3:a:openvpn:openvpn:2.6.4
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cpe:2.3:a:openvpn:openvpn:2.6.5
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cpe:2.3:a:openvpn:openvpn:2.6.6
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cpe:2.3:a:openvpn:openvpn_access_server:2.11.0
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cpe:2.3:a:openvpn:openvpn_access_server:2.11.1
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cpe:2.3:a:openvpn:openvpn_access_server:2.11.2
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cpe:2.3:a:openvpn:openvpn_access_server:2.11.3
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cpe:2.3:a:openvpn:openvpn_access_server:2.12.0
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cpe:2.3:a:openvpn:openvpn_access_server:2.12.1
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cpe:2.3:o:debian:debian_linux:12.0
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cpe:2.3:o:fedoraproject:fedora:39