CVE-2018-10393· NVD / CVE Program· CNA mitre

bark_noise_hybridmp in psy.c in Xiph.Org libvorbis 1.3.6 has a stack-based buffer over-read.

HighCVSS 7.5 · v3.1—No exploit Fix available

Published: Apr 26, 2018
Updated: Jun 16, 2026
EPSS: 2.4% · 83th percentile
CWE: CWE-125

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Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.4%

Affected systems

Vendor	Product	CPE
xiph.org	libvorbis	cpe:2.3:a:xiph.org:libvorbis
debian	debian linux	cpe:2.3:o:debian:debian_linux
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux
redhat	enterprise linux eus	cpe:2.3:o:redhat:enterprise_linux_eus
redhat	enterprise linux server aus	cpe:2.3:o:redhat:enterprise_linux_server_aus
redhat	enterprise linux server tus	cpe:2.3:o:redhat:enterprise_linux_server_tus

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

debian debian linux8.0
debian debian linux9.0
redhat enterprise linux8.0
redhat enterprise linux eus8.1
redhat enterprise linux eus8.2
redhat enterprise linux eus8.4
redhat enterprise linux server aus8.2
redhat enterprise linux server aus8.4
redhat enterprise linux server tus8.2
redhat enterprise linux server tus8.4
xiph.org libvorbis1.3.6

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	libvorbis	before 1:1.3.6-2.el8	1:1.3.6-2.el8
AlmaLinux:8	libvorbis-devel	before 1:1.3.6-2.el8	1:1.3.6-2.el8
AlmaLinux:8	libvorbis-devel-docs	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Alpine:v3.10	libvorbis	before 1.3.6-r2	1.3.6-r2
Debian:12	libvorbis	before 1.3.6-2	1.3.6-2
Debian:8	libvorbis	before 1.3.4-2+deb8u2	1.3.4-2+deb8u2
Debian:9	libvorbis	before 1.3.5-4+deb9u3	1.3.5-4+deb9u3
openSUSE:Tumbleweed	libvorbis	before 1.3.7-1.6	1.3.7-1.6
Red Hat:enterprise_linux:8::appstream	libvorbis	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Red Hat:enterprise_linux:8::appstream	libvorbis-debuginfo	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Red Hat:enterprise_linux:8::appstream	libvorbis-debugsource	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Red Hat:enterprise_linux:8::crb	libvorbis-devel	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Red Hat:enterprise_linux:8::crb	libvorbis-devel-docs	before 1:1.3.6-2.el8	1:1.3.6-2.el8
Rocky Linux:8	libvorbis	before 1:1.3.6-2.el8	1:1.3.6-2.el8
SUSE:Linux Enterprise Desktop 12 SP3	libvorbis	before 1.3.3-10.11.1	1.3.3-10.11.1
SUSE:Linux Enterprise Software Development Kit 11 SP4	libvorbis	before 1.2.0-79.20.11.1	1.2.0-79.20.11.1

Same product

xiph.org: all records

Other highest-scoring records for the same primary product.

CVE-2017-14632Xiph.Org libvorbis 1.3.5 allows Remote Code Execution upon freeing uninitialized memory in the function vorbis_analysis_headerout() in info.
41Plan
CVE-2008-1423Integer overflow in a certain quantvals and quantlist calculation in Xiph.org libvorbis 1.2.0 and earlier allows remote attackers to cause a
39Monitor
CVE-2018-10392mapping0_forward in mapping0.c in Xiph.Org libvorbis 1.3.6 does not validate the number of channels, which allows remote attackers to cause
36Monitor
CVE-2017-14160The bark_noise_hybridmp function in psy.c in Xiph.Org libvorbis 1.3.5 allows remote attackers to cause a denial of service (out-of-bounds ac
36Monitor
CVE-2008-1420Integer overflow in residue partition value (aka partvals) evaluation in Xiph.org libvorbis 1.2.0 and earlier allows remote attackers to exe
29Monitor
CVE-2017-14633In Xiph.Org libvorbis 1.3.5, an out-of-bounds array read vulnerability exists in the function mapping0_forward() in mapping0.c, which may le
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:libvorbis	1:1.3.6-2.el8 · AlmaLinux:8	Package registry (OSV)
almalinux:libvorbis-devel	1:1.3.6-2.el8 · AlmaLinux:8	Package registry (OSV)
almalinux:libvorbis-devel-docs	1:1.3.6-2.el8 · AlmaLinux:8	Package registry (OSV)
alpine:libvorbis	1.3.6-r2 · Alpine:v3.10	Package registry (OSV)
debian:libvorbis	1.3.6-2 · Debian:12	Package registry (OSV)
opensuse:libvorbis	1.3.7-1.6 · openSUSE:Tumbleweed	Package registry (OSV)
red hat:libvorbis	1:1.3.6-2.el8 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:libvorbis-debuginfo	1:1.3.6-2.el8 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:libvorbis-debugsource	1:1.3.6-2.el8 · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:libvorbis-devel	1:1.3.6-2.el8 · Red Hat:enterprise_linux:8::crb	Package registry (OSV)
red hat:libvorbis-devel-docs	1:1.3.6-2.el8 · Red Hat:enterprise_linux:8::crb	Package registry (OSV)
rocky linux:libvorbis	1:1.3.6-2.el8 · Rocky Linux:8	Package registry (OSV)
suse:libvorbis	1.2.0-79.20.11.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Overread BuffersCAPEC-540likelihood: Low · High

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records