#VU9811 Null pointer dereference in GraphicsMagick - CVE-2017-15930

Vulnerability identifier: #VU9811

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-15930

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

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

Vendor: GraphicsMagick Group

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to an error n ReadOneJNGImage in coders/png.c. A remote attacker can transfer specially crafted JPEG scanlines, trigger null pointer dereference, related to a PixelPacket pointer and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GraphicsMagick: 1.3.26

---

External links
https://hg.graphicsmagick.org/hg/GraphicsMagick?cmd=changeset;node=6fc54b6d2be8
https://hg.graphicsmagick.org/hg/GraphicsMagick?cmd=changeset;node=da135eaedc3b

---

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.