Ubuntu Security Notice USN-3090-2
30th September, 2016
Pillow regression
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.04 LTS
Software description
- 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 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
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
python-imaging
2.3.0-1ubuntu3.3
-
python3-pil
2.3.0-1ubuntu3.3
-
python-pil
2.3.0-1ubuntu3.3
-
python3-imaging
2.3.0-1ubuntu3.3
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
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