CVE-2019-13220: Use of uninitialized stack variables in the start_decoder function in stb_vorbis through 2019-03-04 allows an

Q: How do I fix CVE-2019-13220?

stb vorbis: upgrade to newer than 2019-03-04; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2019-13220 being exploited?

CVE-2019-13220 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-13220 affect?

CVE-2019-13220 affects stb vorbis, debian linux. Severity is high (CVSS 7.1). Use of uninitialized stack variables in the start_decoder function in stb_vorbis through 2019-03-04 allows an attacker to cause a denial of service or disclose sensitive information by opening a crafted Ogg Vorbis file.

Q: How urgent is CVE-2019-13220?

Priority 45/100. High severity; On your watchlist

This month

HIGH 7.1WATCHLISTUPGRADEMITIGATE

CVE-2019-13220 is a high-severity flaw (CVSS 7.1) affecting stb vorbis, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use of uninitialized stack variables in the start_decoder function in stb_vorbis through 2019-03-04 allows an attacker to cause a denial of service or disclose sensitive information by opening a crafted Ogg Vorbis file.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-908
Published	2019-08-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · stb vorbis project

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

Am I affected?

Timeline

2019-08-15 17:15 UTCPublished CVE record published
2026-06-17 02:16 UTCUpdated Record last modified

stb vorbis project stb vorbis UPGRADE

Affected: <= 2019-03-04

Fixed in: newer than 2019-03-04

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy stb-vorbis || rpm -q stb-vorbis || stb-vorbis --version

2. UPGRADE to newer than 2019-03-04 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stb-vorbis

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stb-vorbis

Note

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

debian debian linux MITIGATE

Affected: 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2019-13220?

stb vorbis: upgrade to newer than 2019-03-04; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-13220 being exploited?

CVE-2019-13220 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-2019-13220 affect?

CVE-2019-13220 affects stb vorbis, debian linux. Severity is high (CVSS 7.1). Use of uninitialized stack variables in the start_decoder function in stb_vorbis through 2019-03-04 allows an attacker to cause a denial of service or disclose sensitive information by opening a crafted Ogg Vorbis file.

How urgent is CVE-2019-13220?

Priority 45/100. High severity; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

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References

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