CVE-2020-26117

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Source
https://cve.org/CVERecord?id=CVE-2020-26117
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26117.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-26117
Downstream
Related
Published
2020-09-27T04:15:11.650Z
Modified
2026-07-08T05:59:00.906888456Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_STRING"
        },
        {
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
                {
                    "introduced": "15.2"
                },
                {
                    "last_affected": "15.2"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/tigervnc/tigervnc

Affected ranges

Type
GIT
Repo
https://github.com/tigervnc/tigervnc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
540bfc3278e396321124d4b18a798ac2bc18b6ca
Fixed
20dea801e747318525a5859fe4f37c52b05310cb
Fixed
7399eab79a4365434d26494fa1628ce1eb91562b
Fixed
b30f10c681ec87720cff85d490f67098568a9cba
Fixed
f029745f63ac7d22fb91639b2cb5b3ab56134d6e
Database specific 
{
    "cpe": "cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.11.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.0.90
v1.*
v1.1.90
v1.10.90

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26117.json"