USN-4160-1: UW IMAP vulnerability

21 October 2019

uw-imap vulnerability

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

  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

UW IMAP could be made to execute programs if it received specially crafted input.

Software Description

  • uw-imap - c-client library for mail protocols - library files

Details

It was discovered that UW IMAP incorrectly handled inputs. A remote attacker could possibly use this issue to execute arbitrary OS commands.

Update instructions

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

Ubuntu 19.04
libc-client2007e - 8:2007f~dfsg-5ubuntu0.19.04.2
mlock - 8:2007f~dfsg-5ubuntu0.19.04.2
uw-mailutils - 8:2007f~dfsg-5ubuntu0.19.04.2
Ubuntu 18.04 LTS
libc-client2007e - 8:2007f~dfsg-5ubuntu0.18.04.2
mlock - 8:2007f~dfsg-5ubuntu0.18.04.2
uw-mailutils - 8:2007f~dfsg-5ubuntu0.18.04.2
Ubuntu 16.04 LTS
libc-client2007e - 8:2007f~dfsg-4+deb8u1build0.16.04.1
mlock - 8:2007f~dfsg-4+deb8u1build0.16.04.1
uw-mailutils - 8:2007f~dfsg-4+deb8u1build0.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References