USN-3383-1: libsoup vulnerability

10 August 2017

libsoup2.4 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


Applications using libsoup could be made to crash or run programs as your login if it received specially crafted network traffic.

Software Description

  • libsoup2.4 - HTTP client/server library for GNOME


Aleksandar Nikolic discovered a stack based buffer overflow when handling chunked encoding. An attacker could use this to cause a denial of service or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04
gir1.2-soup-2.4 - 2.56.0-2ubuntu0.1
libsoup-gnome2.4-1 - 2.56.0-2ubuntu0.1
libsoup2.4-1 - 2.56.0-2ubuntu0.1
Ubuntu 16.04 LTS
gir1.2-soup-2.4 - 2.52.2-1ubuntu0.2
libsoup-gnome2.4-1 - 2.52.2-1ubuntu0.2
libsoup2.4-1 - 2.52.2-1ubuntu0.2
Ubuntu 14.04 LTS
gir1.2-soup-2.4 - 2.44.2-1ubuntu2.2
libsoup-gnome2.4-1 - 2.44.2-1ubuntu2.2
libsoup2.4-1 - 2.44.2-1ubuntu2.2

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.