CVE-2018-19840 Denial of service in n/a
Attackers can cause denial of service via infinite loop in WavPack library when processing crafted audio files with zero sample rate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-19840?
CVE-2018-19840 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 4 Dec 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The function WavpackPackInit in pack_utils.c in libwavpack.a in WavPack through 5.1.0 allows attackers to cause a denial-of-service (resource exhaustion caused by an infinite loop) via a crafted wav audio file because WavpackSetConfiguration64 mishandles a sample rate of zero.
Weakness: CWE-835
Which versions are affected by CVE-2018-19840?
It affects 4 products.
Linux distribution packages (6)
wavpack SUSE:Linux Enterprise Server 11 SP4 | All versions | 4.50.1-1.30.1 |
wavpack SUSE:Linux Enterprise Server 12 SP5 | All versions | 4.60.99-5.6.3 |
wavpack SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 4.50.1-1.30.1 |
wavpack SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 4.60.99-5.6.3 |
wavpack SUSE:Linux Enterprise Software Development Kit 11 SP4 | All versions | 4.50.1-1.30.1 |
wavpack SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 4.60.99-5.6.3 |
Products include Canonical Ubuntu Linux, Fedoraproject Fedora, Opensuse Leap, Wavpack Wavpack.
How do I fix CVE-2018-19840?
Apply the vendor's patch.
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-2018-19840 being exploited?
There is no known exploitation of CVE-2018-19840 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2018-19840, DEBIAN-CVE-2018-19840, GHSA-5xqp-7g33-7hx3, SUSE-SU-2019:13990-1, SUSE-SU-2020:2727-1, UBUNTU-CVE-2018-19840.