CVE-2020-26117

Katalog CVE

CVSS 8.1 · High EPSS 3,1%

Kerentanan Improper Certificate Validation pada tigervnc, debian linux +1 lainnya. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

27 September 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-295: Improper Certificate Validation

EPSS (30 hari)

3,1% peluang dieksploitasi; lebih tinggi dari 87,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/TigerVNC/tigervnc/commit/20dea801e747318525a5859fe4f37c52b05310cb patch · advisory pihak ketiga
• https://github.com/TigerVNC/tigervnc/commit/7399eab79a4365434d26494fa1628ce1eb91562b patch · advisory pihak ketiga
• https://github.com/TigerVNC/tigervnc/commit/b30f10c681ec87720cff85d490f67098568a9cba patch · advisory pihak ketiga
• https://github.com/TigerVNC/tigervnc/commit/f029745f63ac7d22fb91639b2cb5b3ab56134d6e patch · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00025.html broken link · mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00024.html broken link · mailing list · advisory pihak ketiga
• https://bugzilla.opensuse.org/show_bug.cgi?id=1176733 issue tracking · advisory pihak ketiga
• https://github.com/TigerVNC/tigervnc/releases/tag/v1.11.0 release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/10/msg00007.html mailing list · advisory pihak ketiga