CVE-2019-20788

Katalog CVE

CVSS 9.8 · Critical EPSS 2,5%

Kerentanan Integer Overflow or Wraparound pada libvnc project libvncserver, canonical ubuntu linux +7 lainnya. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.

Rincian

Terbit di NVD

23 April 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-190: Integer Overflow or Wraparound
CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,5% peluang dieksploitasi; lebih tinggi dari 84,2% 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/54220248886b5001fbbb9fa73c4e1a2cb9413fed patch · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.html mailing list · advisory pihak ketiga
• https://securitylab.github.com/advisories/GHSL-2020-064-libvnc-libvncclient exploit · advisory pihak ketiga
• https://usn.ubuntu.com/4407-1/ advisory pihak ketiga