CVE-2018-19801: aubio v0.4.0 to v0.4.8 has a NULL pointer dereference in new_aubio_filterbank via invalid n_filters.

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HIGH 7.5REMOTEUPGRADE

CVE-2018-19801 is a high-severity flaw (CVSS 7.5) affecting aubio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

aubio v0.4.0 to v0.4.8 has a NULL pointer dereference in new_aubio_filterbank via invalid n_filters.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-476
Published	2019-06-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: aubio

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-06-07 17:29 UTCPublished CVE record published
2026-06-17 01:49 UTCUpdated Record last modified

aubio aubio UPGRADE

Affected: >= 0.4.0 and <= 0.4.8

Fixed in: newer than 0.4.8

Safe to downgrade to: a release before 0.4.0

1. Check installed version

apt-cache policy aubio || rpm -q aubio || aubio --version

2. UPGRADE to newer than 0.4.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade aubio

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade aubio

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.4.0 (Debian / Ubuntu)

apt-cache madison aubio sudo apt install aubio=<VERSION_BEFORE_0.4.0> sudo apt-mark hold aubio

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list aubio sudo dnf downgrade aubio-<VERSION_BEFORE_0.4.0> sudo dnf versionlock add aubio

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-19801?

aubio: upgrade to newer than 0.4.8. Exact commands for each OS are on this page.

Is CVE-2018-19801 being exploited?

CVE-2018-19801 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-19801 affect?

CVE-2018-19801 affects aubio. Severity is high (CVSS 7.5). aubio v0.4.0 to v0.4.8 has a NULL pointer dereference in new_aubio_filterbank via invalid n_filters.

How urgent is CVE-2018-19801?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-19802 HIGH 7.5 UPGRADE aubio v0.4.0 to v0.4.8 has a new_aubio_onset NULL pointer dereference.
CVE-2018-19800 CRITICAL 9.8 UPGRADE aubio v0.4.0 to v0.4.8 has a Buffer Overflow in new_aubio_tempo.
CVE-2018-14523 HIGH 8.8 DOWNGRADE MITIGATE An issue was discovered in aubio 0.4.6
CVE-2018-14522 HIGH 8.8 DOWNGRADE MITIGATE An issue was discovered in aubio 0.4.6
CVE-2018-14521 HIGH 8.8 DOWNGRADE An issue was discovered in aubio 0.4.6

References

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