CVEvulnerability
CVE-2020-7043
9.1 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-02-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-295
Description
An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack.
Affected configurations
• openfortivpn project openfortivpn (< 1.12.0)
• fedoraproject fedora 30
• fedoraproject fedora 31
• fedoraproject fedora 32
• opensuse backports sle 15.0
• opensuse leap 15.1
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html Mailing List, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8 Patch, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Patch, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/issues/536 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ lists.fedoraproject.org
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html Mailing List, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/commit/6328a070ddaab16faaf008cb9a8a62439c30f2a8 Patch, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Patch, Third Party Advisory
- https://github.com/adrienverge/openfortivpn/issues/536 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ lists.fedoraproject.org