CVE-2020-26117
CVSS V2 Medium 5.8
CVSS V3 High 8.1
Description
In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.
Overview
- CVE ID
- CVE-2020-26117
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-27T04:15:11
- Last Modified Date
- 2022-11-16T14:13:22
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:* | 1 | OR | 1.11.0 | |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.2
References
Reference URL | Reference Tags |
---|---|
https://github.com/TigerVNC/tigervnc/commit/20dea801e747318525a5859fe4f37c52b05310cb | Patch Third Party Advisory |
https://github.com/TigerVNC/tigervnc/commit/b30f10c681ec87720cff85d490f67098568a9cba | Patch Third Party Advisory |
https://github.com/TigerVNC/tigervnc/releases/tag/v1.11.0 | Release Notes Third Party Advisory |
https://github.com/TigerVNC/tigervnc/commit/f029745f63ac7d22fb91639b2cb5b3ab56134d6e | Patch Third Party Advisory |
https://bugzilla.opensuse.org/show_bug.cgi?id=1176733 | Issue Tracking Third Party Advisory |
https://github.com/TigerVNC/tigervnc/commit/7399eab79a4365434d26494fa1628ce1eb91562b | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/10/msg00007.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00025.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00024.html |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-26117 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26117 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 16:20:57 | Added to TrackCVE | |||
2022-12-04 23:28:14 | 2020-09-27T04:15Z | 2020-09-27T04:15:11 | CVE Published Date | updated |
2022-12-04 23:28:14 | 2022-11-16T14:13:22 | CVE Modified Date | updated | |
2022-12-04 23:28:14 | Analyzed | Vulnerability Status | updated |