Input validation error - CVE-2018-16643

Vulnerability identifier: #VU33484

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-16643

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The functions ReadDCMImage in coders/dcm.c, ReadPWPImage in coders/pwp.c, ReadCALSImage in coders/cals.c, and ReadPICTImage in coders/pict.c in ImageMagick 7.0.8-4 do not check the return value of the fputc function, which allows remote attackers to cause a denial of service via a crafted image file.

Ubuntu
Opensuse
imagemagick6 (Alpine package)
libmagickcore5 (Ubuntu package)
libmagickcore5-extra (Ubuntu package)
libmagick++5 (Ubuntu package)
imagemagick (Ubuntu package)
libmagickcore-6.q16-2-extra (Ubuntu package)
libmagickcore-6.q16-2 (Ubuntu package)
libmagick++-6.q16-5v5 (Ubuntu package)
imagemagick-6.q16 (Ubuntu package)
libmagickcore-6.q16-3 (Ubuntu package)
libmagick++-6.q16-7 (Ubuntu package)
libmagickcore-6.q16-3-extra (Ubuntu package)

Install update from vendor's website.

imagemagick6 (Alpine package) - update to 6.9.10.37-r0
libmagickcore5 (Ubuntu package) - update to 8:6.7.7.10-6ubuntu3.13
libmagickcore5-extra (Ubuntu package) - update to 8:6.7.7.10-6ubuntu3.13
libmagick++5 (Ubuntu package) - update to 8:6.7.7.10-6ubuntu3.13
imagemagick (Ubuntu package) - addressed in versions 8:6.7.7.10-6ubuntu3.13, 8:6.8.9.9-7ubuntu5.13, 8:6.9.7.4+dfsg-16ubuntu6.4
libmagickcore-6.q16-2-extra (Ubuntu package) - update to 8:6.8.9.9-7ubuntu5.13
libmagickcore-6.q16-2 (Ubuntu package) - update to 8:6.8.9.9-7ubuntu5.13
libmagick++-6.q16-5v5 (Ubuntu package) - update to 8:6.8.9.9-7ubuntu5.13
imagemagick-6.q16 (Ubuntu package) - addressed in versions 8:6.8.9.9-7ubuntu5.13, 8:6.9.7.4+dfsg-16ubuntu6.4
libmagickcore-6.q16-3 (Ubuntu package) - update to 8:6.9.7.4+dfsg-16ubuntu6.4
libmagick++-6.q16-7 (Ubuntu package) - update to 8:6.9.7.4+dfsg-16ubuntu6.4
libmagickcore-6.q16-3-extra (Ubuntu package) - update to 8:6.9.7.4+dfsg-16ubuntu6.4

• https://github.com/ImageMagick/ImageMagick/commit/6b6bff054d569a77973f2140c0e86366e6168a6c
• https://github.com/ImageMagick/ImageMagick/issues/1199
• https://lists.debian.org/debian-lts-announce/2018/10/msg00002.html
• https://usn.ubuntu.com/3785-1/

• OpenSUSE Linux update for ImageMagick
• Input validation error in imagemagick6 (Alpine package)
• OpenSUSE Linux update for ImageMagick
• Ubuntu update for imagemagick