PT-2017-18943 · Ytnef+1 · Ytnef+1

Agostino Sarubbo · Publicado 2017-06-07 · Atualizado 2019-05-18 · CVE-2017-9470

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions ytnef version 1.9.2

Description The issue allows remote attackers to cause a denial of service, resulting in a NULL pointer dereference and application crash, via a crafted file. This is due to a problem in the MAPIPrint function in lib/ytnef.c.

Recommendations For ytnef version 1.9.2, consider avoiding the use of the MAPIPrint function until a patch is available. As a temporary workaround, restrict the processing of crafted files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Correção

DoS

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

ALT-PU-2018-2051

CVE-2017-9470

Produtos afetados

Alt Linux

Ytnef

Referências · 26

• 🔥 https://blogs.gentoo.org/ago/2017/05/24/ytnef-null-pointer-dereference-in-mapiprint-ytnef-c · Exploit
• https://github.com/Yeraze/ytnef/issues/47 · Nota
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9473 · Nota de Segurança
• https://cve.org/CVERecord?id=CVE-2017-9470 · Nota de Segurança
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9146 · Nota de Segurança
• https://blogs.gentoo.org/ago/2017/05/24/ytnef-heap-based-buffer-overflow-in-swapword-ytnef-c · Nota
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9470 · Nota de Segurança
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9472 · Nota de Segurança
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12141 · Nota de Segurança
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9470 · Aviso do Fabricante
• https://blogs.gentoo.org/ago/2017/05/24/ytnef-heap-based-buffer-overflow-in-decompressrtf-ytnef-c · Nota
• https://blogs.gentoo.org/ago/2017/05/24/ytnef-heap-based-buffer-overflow-in-swapdword-ytnef-c · Nota
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-9470 · Aviso do Fabricante
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2017-9470 · Aviso do Fabricante