1. Ubuntu Security Notices
  2. USN-3090-2

USN-3090-2: Pillow regresssion

Publication date

30 September 2016

Overview

Pillow regresssion

Releases

Packages

  • pillow - Python Imaging Library compatibility layer

Details

USN-3090-1 fixed vulnerabilities in Pillow. The patch to fix CVE-2014-9601
caused a regression which resulted in failures when processing certain
png images. This update temporarily reverts the security fix for CVE-2014-9601
pending further investigation.

We apologize for the inconvenience.

Original advisory details:

It was discovered that a flaw in processing a compressed text chunk in
a PNG image could cause the image to have a large size when decompressed,
potentially leading to a denial of service. (CVE-2014-9601)

Andrew Drake discovered that Pillow incorrectly validated input. A remote
attacker could use this to cause Pillow to crash, resulting in a denial
of service. (CVE-2014-3589)

Eric Soroos discovered that Pillow incorrectly handled certain...

USN-3090-1 fixed vulnerabilities in Pillow. The patch to fix CVE-2014-9601
caused a regression which resulted in failures when processing certain
png images. This update temporarily reverts the security fix for CVE-2014-9601
pending further investigation.

We apologize for the inconvenience.

Original advisory details:

It was discovered that a flaw in processing a compressed text chunk in
a PNG image could cause the image to have a large size when decompressed,
potentially leading to a denial of service. (CVE-2014-9601)

Andrew Drake discovered that Pillow incorrectly validated input. A remote
attacker could use this to cause Pillow to crash, resulting in a denial
of service. (CVE-2014-3589)

Eric Soroos discovered that Pillow incorrectly handled certain malformed
FLI, Tiff, and PhotoCD files. A remote attacker could use this issue to
cause Pillow to crash, resulting in a denial of service.
(CVE-2016-0740, CVE-2016-0775, CVE-2016-2533)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty python-imaging –  2.3.0-1ubuntu3.3
python-pil –  2.3.0-1ubuntu3.3
python3-imaging –  2.3.0-1ubuntu3.3
python3-pil –  2.3.0-1ubuntu3.3

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References

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