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CVE-2019-19344

Published: 21 January 2020

There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer.

Notes

AuthorNote
mdeslaur
4.9 and later only

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(2:4.7.6+dfsg~ubuntu-0ubuntu2.14)
disco
Released (2:4.10.0+dfsg-0ubuntu2.8)
eoan
Released (2:4.10.7+dfsg-0ubuntu2.4)
trusty Not vulnerable

upstream
Released (4.11.5,4.10.12)
xenial Not vulnerable
(2:4.3.11+dfsg-0ubuntu0.16.04.24)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H