DEBIAN-CVE-2020-11721

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Source
https://security-tracker.debian.org/tracker/CVE-2020-11721
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11721.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2020-11721
Upstream
Published
2020-04-12T19:15:10.367Z
Modified
2026-04-28T20:21:09.814493Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.

References

Affected packages

Debian:11 / libsixel

Package

Name
libsixel
Purl
pkg:deb/debian/libsixel?arch=source

Affected ranges

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

Affected versions

1.*
1.8.6-2
1.10.3-1
1.10.3-2
1.10.3-3
1.10.5-1
1:1.*
1:1.8.7-1
1:1.8.7-2
1:1.8.7-3
1:1.8.7-4
1:1.8.7-5

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11721.json"

Debian:12 / libsixel

Package

Name
libsixel
Purl
pkg:deb/debian/libsixel?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.3-1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11721.json"

Debian:13 / libsixel

Package

Name
libsixel
Purl
pkg:deb/debian/libsixel?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.3-1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11721.json"

Debian:14 / libsixel

Package

Name
libsixel
Purl
pkg:deb/debian/libsixel?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.3-1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11721.json"