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Sicherheit: Mehrere Probleme in jbig2dec
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in jbig2dec
ID: USN-3297-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 16.10, Ubuntu 17.04
Datum: Mi, 24. Mai 2017, 16:34
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7885
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7975
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7976
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9601

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
<ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <9dcfbe35-8c74-2b9f-154b-4efea2c8d140@canonical.com>
Subject: [USN-3297-1] jbig2dec vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3297-1
May 24, 2017

jbig2dec vulnerabilities
==========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

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 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. (CVE-2017-7975)

Dai Ge 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-2017-7976)

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.

References:
https://www.ubuntu.com/usn/usn-3297-1
CVE-2016-9601, CVE-2017-7885, CVE-2017-7975, CVE-2017-7976

Package Information:
https://launchpad.net/ubuntu/+source/jbig2dec/0.13-4ubuntu0.1
https://launchpad.net/ubuntu/+source/jbig2dec/0.13-2ubuntu0.1
https://launchpad.net/ubuntu/+source/jbig2dec/0.12+20150918-1ubuntu0.1
https://launchpad.net/ubuntu/+source/jbig2dec/0.11+20120125-1ubuntu1.1



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