PT-2017-17704 · Tigervnc+3 · Tigervnc+3

Carnil · Publicado 2017-04-01 · Atualizado 2018-01-13 · CVE-2017-7394

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 TigerVNC version 1.7.1

Description The issue allows unauthenticated users to crash the server by sending long usernames, specifically in the SSecurityPlain::processMsg function within the SSecurityPlain.cxx file.

Recommendations For TigerVNC version 1.7.1, consider restricting access to the server to prevent unauthenticated users from sending long usernames until a patch is available. As a temporary workaround, limiting the length of usernames that can be processed by the server may help mitigate the risk of exploitation.

Correção

RCE

Enumeração de Fraquezas

CWE-20

Identificadores relacionados

CESA-2017_2000

CVE-2017-7394

RHSA-2017:2000

RHSA-2017_2000

SUSE-SU-2017:1093-1

SUSE-SU-2017:1094-1

Produtos afetados

Centos

Red Hat

Suse

Tigervnc

Referências · 30

• https://github.com/TigerVNC/tigervnc/pull/440 · Correção
• http://securityfocus.com/bid/97305 · Nota
• https://bugzilla.suse.com/1031879 · Nota
• https://suse.com/security/cve/CVE-2017-7396 · Nota
• https://suse.com/security/cve/CVE-2017-7395 · Nota
• https://bugzilla.suse.com/1026833 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2017-7394 · Nota de Segurança
• https://bugzilla.suse.com/1031045 · Nota
• https://access.redhat.com/errata/RHSA-2017:2000 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2017-7394 · Aviso do Fabricante
• https://bugzilla.suse.com/1031875 · Nota
• https://security-tracker.debian.org/tracker/CVE-2017-7394 · Aviso do Fabricante
• https://suse.com/support/update/announcement/2017/suse-su-20171093-1 · Nota
• https://linux.oracle.com/errata/ELSA-2017-2000.html · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2017-7393 · Nota