#VU38580 Out-of-bounds read in ImageMagick - CVE-2017-12640

Vulnerability identifier: #VU38580

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-12640

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

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

The vulnerability exists due to out-of-bounds read in ReadOneMNGImage in coders/png.c. A remote attacker can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.6-1

---

External links
https://www.securityfocus.com/bid/100155
https://github.com/ImageMagick/ImageMagick/commit/78d4c5db50fbab0b4beb69c46c6167f2c6513dec
https://github.com/ImageMagick/ImageMagick/issues/542
https://usn.ubuntu.com/3681-1/
https://www.debian.org/security/2017/dsa-4019
https://www.debian.org/security/2017/dsa-4040

---

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.