CVE-2018-1000878 Use after free in n/a
A use-after-free flaw in the RAR decoder allows attackers to cause a denial of service via a crafted archive.
- 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-2018-1000878?
CVE-2018-1000878 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 20 Dec 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
libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.
Weakness: CWE-416
Which versions are affected by CVE-2018-1000878?
It affects 8 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Libarchive Libarchive, Opensuse Leap, Redhat Enterprise Linux Desktop and 2 more.
How do I fix CVE-2018-1000878?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2018-1000878 being exploited?
There is no known exploitation of CVE-2018-1000878 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-1000878, GHSA-53fm-4pq6-xwr4, UBUNTU-CVE-2018-1000878.