CVE-2018-6542 Memory corruption in n/a
A bus error in ZZIPlib caused by misaligned memory access allows attackers to cause a denial of service via crafted disk64_trailer seek values.
- 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-2018-6542?
CVE-2018-6542 is a medium-severity memory corruption vulnerability in n/a, published on 2 Feb 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
In ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c.
Which versions are affected by CVE-2018-6542?
It affects 1 product.
Linux distribution packages (3)
zziplib SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 0.13.67-10.11.1 |
zziplib SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 0.13.67-10.11.1 |
zziplib SUSE:Linux Enterprise Workstation Extension 12 SP3 | All versions | 0.13.67-10.11.1 |
Products include Gdraheim Zziplib.
How do I fix CVE-2018-6542?
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-2018-6542 being exploited?
There is no known exploitation of CVE-2018-6542 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2018-6542, ECHO-46fc-3288-0ab3, GHSA-66ww-fgg3-pc35, SUSE-SU-2018:1507-1.