PT-2019-5951 · Ultravnc · Ultravnc

Publicado 2019-03-05 · Atualizado 2021-06-28 · CVE-2019-8263

Positive Technologies (AI Summary)

CVSS v2.0

7.1

Alta

Vetor base

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions UltraVNC revision 1205

Description The issue is related to a stack-based buffer overflow in the VNC client code inside the ShowConnInfo routine. This can lead to a denial of service (DoS) condition. The attack appears to be exploitable via network connectivity and requires user interaction to be triggered.

Recommendations For UltraVNC revision 1205, update to revision 1206 to resolve the issue.

Correção

Stack Overflow

Memory Corruption

Enumeração de Fraquezas

CWE-121

CWE-787

Identificadores relacionados

BDU:2021-03843

CVE-2019-8263

Produtos afetados

Ultravnc

Referências · 10

• https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf · Nota
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 · Nota
• https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf · Nota
• https://bdu.fstec.ru/vul/2021-03843 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2019-8263 · Nota de Segurança
• https://us-cert.gov/ics/advisories/icsa-20-161-06 · Nota
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-009-ultravnc-access-of-memory-location-after-end-of-buffer · Nota
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-010-ultravnc-stack-based-buffer-overflow · Nota
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf · Nota
• https://osv.dev/vulnerability/CVE-2019-8263 · Aviso do Fabricante