Vulnerability identifier: #VU33084

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-9601

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
py-pillow
Universal components / Libraries / Libraries used by multiple products

Vendor: Alex Clark and Contributors

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Pillow before 2.7.0 allows remote attackers to cause a denial of service via a compressed text chunk in a PNG image that has a large size when it is decompressed.

Mitigation
Install update from vendor's website.

Vulnerable software versions

py-pillow: 2.0.0 - 2.6.2

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External links
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148442.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00056.html
http://pillow.readthedocs.org/releasenotes/2.7.0.html
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/77758
http://github.com/python-pillow/Pillow/pull/1060
http://www.djangoproject.com/weblog/2015/jan/02/pillow-security-release/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.