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CVE-2015-9267

Published: 1 October 2018

Nullsoft Scriptable Install System (NSIS) before 2.49 uses temporary folder locations that allow unprivileged local users to overwrite files. This allows a local attack in which either a plugin or the uninstaller can be replaced by a Trojan horse program.

From the Ubuntu Security Team

It was discovered that NSIS incorrectly handled temporary folders. An attacker could possibly use this issue to execute arbitrary commands.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
nsis
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(2.50-1)
cosmic Not vulnerable
(2.50-1)
disco Not vulnerable
(2.50-1)
eoan Not vulnerable
(2.50-1)
focal Not vulnerable
(2.50-1)
hirsute Not vulnerable
(2.50-1)
trusty
Released (2.46-7ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (2.49)
xenial Not vulnerable
(2.50-1)
groovy Not vulnerable
(2.50-1)
jammy Not vulnerable
(2.50-1)
impish Not vulnerable
(2.50-1)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N