CVE-2017-1000256
Debian Security Advisory 4003-1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.
libvirt en sus versiones 2.3.0 y posteriores es vulnerable a una mala configuración por defecto de "verify-peer=no" que libvirt pasa a QEMU. Esto da lugar a un error a la hora de validar certificados SSL/TLS por defecto.
Vivian Zhang and Christoph Anton Mitterer discovered that libvirt incorrectly disabled password authentication when the VNC password was set to an empty string. A remote attacker could possibly use this issue to bypass authentication, contrary to expectations. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Daniel P. Berrange discovered that libvirt incorrectly handled validating SSL/TLS certificates. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 17.10. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2017-10-18 CVE Reserved
- 2017-10-20 CVE Published
- 2024-08-05 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-295: Improper Certificate Validation
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1556251.html | X_refsource_misc |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.debian.org/security/2017/dsa-4003 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2017-1000256 | 2023-11-07 | |
| https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Redhat Search vendor "Redhat" | Libvirt Search vendor "Redhat" for product "Libvirt" | >= 2.3.0 < 3.9.0 Search vendor "Redhat" for product "Libvirt" and version " >= 2.3.0 < 3.9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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