The following updates has been released for Debian GNU/Linux:

Debian GNU/Linux 8 LTS:
DLA 1680-1: tiff security update

Debian GNU/Linux 9:
DSA 4388-2: mosquitto regression update

DLA 1680-1: tiff security update

Package : tiff
Version : 4.0.3-12.3+deb8u8
CVE ID : CVE-2018-17000 CVE-2018-19210 CVE-2019-7663


Brief introduction

CVE-2018-17000

A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c
(called from TIFFWriteDirectoryTagTransferfunction) allows an
attacker to cause a denial-of-service through a crafted tiff file. This
vulnerability can be triggered by the executable tiffcp.

CVE-2018-19210

There is a NULL pointer dereference in the TIFFWriteDirectorySec function
in tif_dirwrite.c that will lead to a denial of service attack, as
demonstrated by tiffset.

CVE-2019-7663

An Invalid Address dereference was discovered in
TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c,
affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote
attackers could leverage this vulnerability to cause a denial-of-service
via a crafted tiff file.

We believe this is the same as CVE-2018-17000 (above).

For Debian 8 "Jessie", these problems have been fixed in version
4.0.3-12.3+deb8u8.

We recommend that you upgrade your tiff packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

DSA 4388-2: mosquitto regression update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4388-2 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 17, 2019 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : mosquitto
Debian Bug : 922071

Kushal Kumaran reported that the update for mosquitto issued as DSA
4388-1 causes mosquitto to crash when reloading the persistent database.
Updated packages are now available to correct this issue.

For the stable distribution (stretch), this problem has been fixed in
version 1.4.10-3+deb9u4.

We recommend that you upgrade your mosquitto packages.

For the detailed security status of mosquitto please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/mosquitto

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/