#VU32239 NULL pointer dereference in OpenJPEG - CVE-2016-7445

Vulnerability identifier: #VU32239

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-7445

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenJPEG
Universal components / Libraries / Libraries used by multiple products

Vendor: openjpeg.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via vectors involving the variable s.

Mitigation
Update to version 2.1.2.

Vulnerable software versions

OpenJPEG: 2.1.0 - 2.1.1

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External links
https://lists.opensuse.org/opensuse-updates/2016-09/msg00109.html
https://www.openwall.com/lists/oss-security/2016/09/18/4
https://www.openwall.com/lists/oss-security/2016/09/18/6
https://www.securityfocus.com/bid/93040
https://github.com/uclouvain/openjpeg/blob/openjpeg-2.1/CHANGELOG.md
https://github.com/uclouvain/openjpeg/issues/843
https://security.gentoo.org/glsa/201612-26

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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.