CVE-2016-8689 Denial of service in n/a

High 7.5 Published 15 Feb 2017 Updated 6 Aug 2024

Remote attackers can cause a denial of service via out-of-bounds read in libarchive when processing malicious 7zip archives.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2016-8689?

CVE-2016-8689 is a high-severity denial of service vulnerability in Libarchive Libarchive, published on 15 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The read_Header function in archive_read_support_format_7zip.c in libarchive 3.2.1 allows remote attackers to cause a denial of service (out-of-bounds read) via multiple EmptyStream attributes in a header in a 7zip archive.

Weakness: CWE-125

Which versions are affected by CVE-2016-8689?

It affects 2 products.

Products include Libarchive Libarchive, Opensuse Leap.

How do I fix CVE-2016-8689?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-8689 being exploited?

There is no known exploitation of CVE-2016-8689 in the wild and no public exploit code.

All Libarchive Libarchive vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-8689, GHSA-55v8-px3p-89m5, UBUNTU-CVE-2016-8689.