NULL pointer dereference in GraphicsMagick



Published: 2017-01-18 | Updated: 2020-08-03
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-7997
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		GraphicsMagick
Universal components / Libraries / Libraries used by multiple products

Vendor GraphicsMagick Group

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU33183

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-7997

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The WPG format reader in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service (assertion failure and crash) via vectors related to a ReferenceBlob and a NULL pointer.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GraphicsMagick: 1.3.8 - 1.3.25

CPE2.3 External links

http://www.debian.org/security/2016/dsa-3746
http://www.openwall.com/lists/oss-security/2016/10/07/4
http://www.openwall.com/lists/oss-security/2016/10/08/5
http://www.securityfocus.com/bid/93467


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.



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