DEBIAN-CVE-2026-5673

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-5673
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5673.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-5673
Upstream
  • CVE-2026-5673
Published
2026-04-06T10:16:03Z
Modified
2026-09-14T17:03:20Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.

References

Affected packages

Debian:12 / libtheora

Package

Name
libtheora
Purl
pkg:deb/debian/libtheora?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.1+dfsg.1-16.1
1.1.1+dfsg.1-16.1+deb12u1
1.1.1+dfsg.1-17
1.2.0~alpha1+dfsg-1
1.2.0~alpha1+dfsg-2
1.2.0~alpha1+dfsg-3
1.2.0~alpha1+dfsg-4
1.2.0~alpha1+dfsg-5
1.2.0~alpha1+dfsg-6
1.2.0+dfsg-1
1.2.0+dfsg-2
1.2.0+dfsg-3
1.2.0+dfsg-4
1.2.0+dfsg-5
1.2.0+dfsg-6

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5673.json"

Debian:13 / libtheora

Package

Name
libtheora
Purl
pkg:deb/debian/libtheora?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.0~alpha1+dfsg-6
1.2.0+dfsg-1
1.2.0+dfsg-2
1.2.0+dfsg-3
1.2.0+dfsg-4
1.2.0+dfsg-5
1.2.0+dfsg-6

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5673.json"

Debian:14 / libtheora

Package

Name
libtheora
Purl
pkg:deb/debian/libtheora?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.2.0~alpha1+dfsg-6
1.2.0+dfsg-1
1.2.0+dfsg-2
1.2.0+dfsg-3
1.2.0+dfsg-4
1.2.0+dfsg-5
1.2.0+dfsg-6

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5673.json"