PT-2019-5744 · Tightvnc+4 · Tightvnc+4

Pavel Cheremushkin · Publicado 2019-10-29 · Atualizado 2020-12-09 · CVE-2019-15680

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions TightVNC version 1.3.10

Description The issue is related to a null pointer dereference in the HandleZlibBPP function, which can result in a Denial of System (DoS). This can be exploited via network connectivity, potentially allowing a remote attacker to cause a service disruption.

Recommendations For TightVNC version 1.3.10, consider disabling the HandleZlibBPP function as a temporary workaround until a patch is available. Restrict access to the network to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

BDU:2021-01302

CVE-2019-15680

DLA-2045-1

SUSE-SU-2019:14235-1

SUSE-SU-2019_14235-1

USN-4407-1

Produtos afetados

Debian

Linuxmint

Suse

Tightvnc

Ubuntu

Referências · 32

• https://nvd.nist.gov/vuln/detail/CVE-2019-15680 · Nota de Segurança
• https://security-tracker.debian.org/tracker/CVE-2019-15680 · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2019-15680 · Aviso do Fabricante
• https://bdu.fstec.ru/vul/2021-01302 · Nota de Segurança
• https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf · Nota
• https://bugzilla.suse.com/1155442 · Nota
• https://openwall.com/lists/oss-security/2018/12/10/5 · Nota
• https://suse.com/security/cve/CVE-2019-15678 · Nota
• https://suse.com/security/cve/CVE-2019-15679 · Nota
• https://osv.dev/vulnerability/SUSE-SU-2019:14235-1 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2019-15680 · Aviso do Fabricante
• https://ubuntu.com/security/notices/USN-4407-1 · Aviso do Fabricante
• https://osv.dev/vulnerability/USN-4407-1 · Aviso do Fabricante
• https://cve.org/CVERecord?id=CVE-2019-15680 · Nota de Segurança
• https://suse.com/security/cve/CVE-2019-8287 · Nota