CVE-2019-9894 Information

Description

A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/ https://seclists.org/bugtraq/2019/Apr/6 https://security.netapp.com/advisory/ntap-20190404-0001/ https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html https://www.debian.org/security/2019/dsa-4423

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5