PT-2020-10803 · Libvnc+4 · Libvncserver+4

Derdakon · Publicado 2020-06-17 · Atualizado 2022-03-10 · CVE-2019-20840

Positive Technologies (AI Summary) · Pt

CVSS v3.1

7.5

Alta

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Nome do software vulnerável e versões afetadas

Versões do LibVNCServer anteriores à 0.9.13

Descrição

Um problema no arquivo libvncserver/ws decode.c pode causar uma falha devido a acessos desalinhados na função hybiReadAndDecode.

Recomendações

Para versões anteriores à 0.9.13, atualize para a versão 0.9.13 ou posterior para resolver o problema.

Correção

Memory Corruption

Enumeração de Fraquezas

CWE-787

Identificadores relacionados

ALT-PU-2020-2671

ALT-PU-2020-2694

CVE-2019-20840

OPENSUSE-SU-2020:0988-1

OPENSUSE-SU-2020:1025-1

OPENSUSE-SU-2020:1056-1

OPENSUSE-SU-2020_0988-1

OPENSUSE-SU-2020_1025-1

OPENSUSE-SU-2020_1056-1

OPENSUSE-SU-2024:10598-1

SUSE-SU-2020:1922-1

SUSE-SU-2020:2167-1

USN-4434-1

Produtos afetados

Alt Linux

Libvncserver

Linuxmint

Suse

Ubuntu

Referências · 62

• https://github.com/LibVNC/libvncserver/commit/0cf1400c61850065de590d403f6d49e32882fd76 · Correção
• https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 · Nota
• https://bugzilla.suse.com/1173880 · Nota
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-20840 · Aviso do Fabricante
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY · Aviso do Fabricante
• https://bugzilla.suse.com/1173700 · Nota
• https://ubuntu.com/security/CVE-2020-14405 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2019-20839 · Nota
• https://suse.com/support/update/announcement/2020/suse-su-20201922-1 · Nota
• https://suse.com/security/cve/CVE-2020-14398 · Nota
• https://ubuntu.com/security/CVE-2020-14398 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2020-14403 · Nota
• https://suse.com/security/cve/CVE-2020-14400 · Nota
• https://osv.dev/vulnerability/CVE-2019-20840 · Aviso do Fabricante
• https://cve.org/CVERecord?id=CVE-2019-20840 · Nota de Segurança