CVE-2020-11462
published 2020-05-04CVE-2020-11462: An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve…
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.25%
65.7th percentile
An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| openvpn | openvpn_access_server | < 2.7.0 | 2.7.0 |
| openvpn | openvpn_access_server | 2.8.0 – 2.8.3 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
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No detection rules found.
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Bugzilla
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [epel-all]
bugzilla·2020-05-11·CVSS 7.5
CVE-2020-11462 [HIGH] CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [epel-all]
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fed
Bugzilla
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2
bugzilla·2020-05-11·CVSS 7.5
CVE-2020-11462 [HIGH] CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2
An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable.
Reference:
https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283
Discussion:
Created openvpn tracking bugs for this issue:
Affects: epel-all [bug 1834408]
Affects: fedor
Bugzilla
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [fedora-all]
bugzilla·2020-05-11·CVSS 7.5
CVE-2020-11462 [HIGH] CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [fedora-all]
CVE-2020-11462 openvpn: temporary DoS state of the management interface when sending an XML Entity Expansion payload to the XMLRPC based RPC2 [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
2020-05-04
Published