A denial of service vulnerability was reported in the Python Image Library and all versions of its fork, Pillow. If a user were able to supply date to the Image.open routine or similar APIs they could cause the application to crash due to inadequate input validation in the IcnsImagePlugin module. This has been corrected in upstream version 2.3.2  and 2.5.2 ; a patch is available .
Red Hat would like to thank Andrew Drake of Dropbox for reporting this issue.
Created python-pillow tracking bugs for this issue:
Affects: fedora-all [bug 1130712]
python-pillow-2.0.0-14.gitd1c6db8.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
python-pillow-2.2.1-5.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
This is an infinite loop. The code did not properly check size values read from the input file. A malicious ICNS (Apple Icon Image) file could cause python-pillow / python-imaging to repeatedly read the same block of input file and never advance, leading to high CPU usage DoS.
Affects python-pillow and python-imaging packages as shipped in Red Hat Enterprise Linux 5 and later.
Created python26-imaging tracking bugs for this issue:
Affects: epel-5 [bug 1162256]
This issue affects the versions of python-imaging as shipped with Red Hat Enterprise Linux 5 and 6, and versions of python-pillow as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.