Ubuntu 14.04-17.04 USN-3297-1 Critical: jbig2dec Memory Issues

ubuntu

May 24, 2017

Several security issues were fixed in jbig2dec.

Summary

Several security issues were fixed in jbig2dec.

Software Description:

- jbig2dec: JBIG2 decoder library

Details:

Bingchang Liu discovered that jbig2dec incorrectly handled memory when

decoding malformed image files. If a user or automated system were tricked

into processing a specially crafted JBIG2 image file, a remote attacker

could cause jbig2dec to crash, resulting in a denial of service, or

possibly execute arbitrary code. This issue only applied to Ubuntu 14.04

LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9601)

It was discovered that jbig2dec incorrectly handled memory when decoding

malformed image files. If a user or automated system were tricked into

processing a specially crafted JBIG2 image file, a remote attacker could

cause jbig2dec to crash, resulting in a denial of service, or possibly

disclose sensitive information. (CVE-2017-7885)

Jiaqi Peng discovered that jbig2dec incorrectly handled memory when

decoding malformed image files. If a ...

Read the Full Advisory

Topics Covered

security advisory denial of service Ubuntu remote execution memory issue jbig2dec

Update Instructions

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

Ubuntu 17.04:
  jbig2dec                        0.13-4ubuntu0.1
  libjbig2dec0                    0.13-4ubuntu0.1

Ubuntu 16.10:
  jbig2dec                        0.13-2ubuntu0.1
  libjbig2dec0                    0.13-2ubuntu0.1

Ubuntu 16.04 LTS:
  jbig2dec                        0.12+20150918-1ubuntu0.1
  libjbig2dec0                    0.12+20150918-1ubuntu0.1

Ubuntu 14.04 LTS:
  jbig2dec                        0.11+20120125-1ubuntu1.1
  libjbig2dec0                    0.11+20120125-1ubuntu1.1

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