CVE-2017-18922

Katalog CVE

CVSS 9.8 · Critical EPSS 2,3%

Kerentanan Out-of-bounds Write pada libvncserver project libvncserver, canonical ubuntu linux +8 lainnya. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

Rincian

Terbit di NVD

30 Juni 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,3% peluang dieksploitasi; lebih tinggi dari 82,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf patch · advisory pihak ketiga
• https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433 patch · advisory pihak ketiga
• https://usn.ubuntu.com/4407-1/ patch · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2020/06/30/3 mailing list · advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=1852356 issue tracking · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2020/06/30/2 mailing list · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NA...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDF...