Stack-based buffer overflow in libpng - CVE-2018-14550
Published: April 18, 2019
Vulnerability identifier: #VU18308
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-14550
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing images within the get_token() function in pnm2png. A remote attacker can create a specially crafted image, pass it to the affected application, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
libpng
Gentoo Linux
Slackware Linux
libpng (Alpine package)
MikTex
Gentoo Linux
Slackware Linux
libpng (Alpine package)
MikTex
How to mitigate CVE-2018-14550
Install updates from vendor's website.
libpng - update to 1.6.37
libpng (Alpine package) - update to 1.6.37-r0
MikTex - update to 2.9.7300
libpng (Alpine package) - update to 1.6.37-r0
MikTex - update to 2.9.7300