Upstream information

CVE-2017-7522 at MITRE

Description

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 4 6.3
Vector AV:N/AC:L/Au:S/C:N/I:N/A:P AV:N/AC:M/Au:S/C:N/I:N/A:C
Access Vector Network Network
Access Complexity Low Medium
Authentication Single Single
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Partial Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.5 6.5
Vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High

Note from the SUSE Security Team

This issue only affects openvpn if it is built with PolarSS/mbedTLS. Our openvpn packages are built with openssl, so we are not affected by this problem.

SUSE Bugzilla entry: 1044947 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15
  • openvpn >= 2.4.3-3.39
  • openvpn-auth-pam-plugin >= 2.4.3-3.39
  • openvpn-devel >= 2.4.3-3.39
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA openvpn
openSUSE Leap 15.0
  • openvpn >= 2.4.3-lp150.2.10
Patchnames:
openSUSE Leap 15.0 GA openvpn


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP2 openvpn Released
SUSE Linux Enterprise Security Module 11.3 GA openvpn-openssl1 Released
SUSE Linux Enterprise Server 11 SP3 LTSS openvpn Released
SUSE Linux Enterprise Server 11 SP4 openvpn Released
SUSE Linux Enterprise Server 12 GA LTSS openvpn Released
SUSE Linux Enterprise Server 12 SP1 LTSS openvpn Released
SUSE Linux Enterprise Server 12 SP2 openvpn Released
SUSE Linux Enterprise Server 12 SP2 for Raspberry PI openvpn Released