Bug 48295

Summary:	nsis: Multiple issues (4.2)
Product:	UCS	Reporter:	Quality Assurance <qa>
Component:	Security updates	Assignee:	Quality Assurance <qa>
Status:	CLOSED FIXED	QA Contact:	Philipp Hahn <hahn>
Severity:	normal
Priority:	P3
Version:	UCS 4.2
Target Milestone:	UCS 4.2-5-errata
Hardware:	All
OS:	Linux
What kind of report is it?:	Security Issue	What type of bug is this?:	---
Who will be affected by this bug?:	---	How will those affected feel about the bug?:	---
User Pain:		Enterprise Customer affected?:
School Customer affected?:		ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:		Bug group (optional):
Max CVSS v3 score:	7.8 (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) NVD

Description Quality Assurance

2018-12-06 16:31:35 CET

New Debian nsis 2.46-10+deb8u1 fixes:
This update addresses the following issues:
* 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. (CVE-2015-9267)
* Nullsoft Scriptable Install System (NSIS) before 2.49 has unsafe implicit  linking against Version.dll. In other words, there is no protection  mechanism in which a wrapper function resolves the dependency at an  appropriate time during runtime. (CVE-2015-9268)

Comment 1 Quality Assurance

2018-12-06 17:00:16 CET

--- mirror/ftp/4.2/unmaintained/4.2-0/source/nsis_2.46-10.dsc
+++ apt/ucs_4.2-0-errata4.2-5/source/nsis_2.46-10+deb8u1.dsc
@@ -1,3 +1,15 @@
+2.46-10+deb8u1 [Fri, 30 Nov 2018 18:45:02 +0100] Thorsten Alteholz <debian@alteholz.de>:
+
+  * Non-maintainer upload by the LTS Team. 
+  * CVE-2015-9267, CVE-2015-9268
+    Fix for several issues:
+      - use SetDefaultDllDirectories() to restrict implicitly loaded
+        and dynamically loaded modules from trusted directories
+      - create temporary directory in a way that only elevated users
+        can write into it
+      - no implicit linking against Version.dll but use of wrapper
+        functions
+ 
 2.46-10 [Mon, 15 Dec 2014 22:58:06 +0100] Didier Raboud <odyx@debian.org>:
 
   * Fail the build if libwinpthread is needed at runtime (see #722898)

<http://10.200.17.11/4.2-5/#9159029948560049686>

Comment 2 Philipp Hahn

2018-12-06 20:11:30 CET

OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[4.2-5] 55596d0500 Bug #48295: nsis 2.46-10+deb8u1
 doc/errata/staging/nsis.yaml | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comment 3 Arvid Requate

2018-12-12 13:55:49 CET

<http://errata.software-univention.de/ucs/4.2/564.html>