CVE-2018-12900 Memory corruption in n/a

High 8.8 Published 26 Jun 2018 Updated 5 Aug 2024

Remote attackers can cause a crash or potentially execute code via a crafted TIFF file due to a heap-based buffer overflow in LibTIFF.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2018-12900?

CVE-2018-12900 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 26 Jun 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0beta7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 allows remote attackers to cause a denial of service (crash) or possibly have unspecified other impact via a crafted TIFF file.

Weakness: CWE-787

Which versions are affected by CVE-2018-12900?

It affects 2 products.

Linux distribution packages (9)

`libtiff` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-15.el8`
`libtiff-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-15.el8`
`libtiff-debugsource` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-15.el8`
`libtiff-devel` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-15.el8`
`libtiff-tools-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`0:4.0.9-15.el8`
`libtiff-debuginfo` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-15.el8`
`libtiff-debugsource` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-15.el8`
`libtiff-tools` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-15.el8`
`libtiff-tools-debuginfo` Red Hat:enterprise_linux:8::crb	All versions	`0:4.0.9-15.el8`

Products include Canonical Ubuntu Linux, Libtiff Libtiff.

How do I fix CVE-2018-12900?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-12900 being exploited?

There is no known exploitation of CVE-2018-12900 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2018-12900, DEBIAN-CVE-2018-12900, GHSA-v933-8xv5-c5mm, RHSA-2019:3419, UBUNTU-CVE-2018-12900.