DEBIAN-CVE-2026-20345

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Source
https://security-tracker.debian.org/tracker/CVE-2026-20345
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20345.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-20345
Upstream
  • CVE-2026-20345
Published
2026-08-07T17:17:03Z
Modified
2026-09-14T17:02:39Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A vulnerability in the GPT file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper handling of an endian conversion operation, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted GPT file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

References

Affected packages

Debian:12 / clamav

Package

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

Affected ranges

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

Affected versions

1.*
1.0.1+dfsg-2
1.0.2+dfsg-1~deb12u1
1.0.2+dfsg-1
1.0.3+dfsg-1~deb12u1
1.0.3+dfsg-1
1.0.3+dfsg-2
1.0.4+dfsg-1
1.0.5+dfsg-1~deb12u1
1.0.5+dfsg-1
1.0.5+dfsg-1.1
1.0.6+dfsg-1
1.0.7+dfsg-1~deb11u1
1.0.7+dfsg-1~deb11u2
1.0.7+dfsg-1~deb12u1
1.0.9+dfsg-1~deb11u1
1.0.9+dfsg-1~deb12u1
1.2.1+dfsg-1
1.2.1+dfsg-2
1.2.1+dfsg-3
1.3.1+dfsg-1
1.3.1+dfsg-2
1.3.1+dfsg-3
1.3.1+dfsg-4
1.3.1+dfsg-5
1.4.1+dfsg-1
1.4.2+dfsg-1
1.4.3+dfsg-1~deb11u1
1.4.3+dfsg-1~deb12u1
1.4.3+dfsg-1~deb12u2
1.4.3+dfsg-1
1.4.3+dfsg-2
1.4.4+dfsg-1
1.4.4+dfsg-2
1.4.5+dfsg-1
1.4.5+dfsg-2
1.4.5+dfsg-3
1.4.6+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20345.json"

Debian:13 / clamav

Package

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

Affected ranges

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

Affected versions

1.*
1.4.3+dfsg-1
1.4.3+dfsg-2
1.4.4+dfsg-1
1.4.4+dfsg-2
1.4.5+dfsg-1
1.4.5+dfsg-2
1.4.5+dfsg-3
1.4.6+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20345.json"

Debian:14 / clamav

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.4.6+dfsg-1

Affected versions

1.*
1.4.3+dfsg-1
1.4.3+dfsg-2
1.4.4+dfsg-1
1.4.4+dfsg-2
1.4.5+dfsg-1
1.4.5+dfsg-2
1.4.5+dfsg-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-20345.json"