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.
30 September 2016
A security issue affects these releases of Ubuntu and its derivatives:
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)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
Vulmon