DEBIAN-CVE-2026-120436

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Source
https://security-tracker.debian.org/tracker/CVE-2026-120436
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120436.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-120436
Upstream
  • CVE-2026-120436
Published
2026-11-02T15:17:25Z
Modified
2026-11-04T01:00:06Z
Severity
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution.

References

Affected packages

Debian:12 / netpbm-free

Package

Name
netpbm-free
Purl
pkg:deb/debian/netpbm-free?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2:11.*
2:11.01.00-2
2:11.03.00-1
2:11.03.00-2
2:11.03.00-3
2:11.03.06-1
2:11.04.05-1
2:11.04.05-2
2:11.05.01-1
2:11.05.01-2
2:11.05.01-3
2:11.05.02-1
2:11.05.02-1.1~exp1
2:11.05.02-1.1
2:11.05.03-1
2:11.06.00-1
2:11.06.01-1
2:11.06.01-2
2:11.07.00-1
2:11.07.00-2
2:11.07.01-1
2:11.08.00-1
2:11.08.01-1
2:11.08.02-1
2:11.09.02-1
2:11.09.02-2
2:11.09.03-1
2:11.10.02-1
2:11.11.00-1
2:11.11.00-2
2:11.11.01-1
2:11.12.00-1
2:11.13.00-1
2:11.13.00-2
2:11.13.00-3
2:11.13.03-1
2:11.13.03+ds-1
2:11.13.03+ds-2
2:11.15.04+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120436.json"

Debian:13 / netpbm-free

Package

Name
netpbm-free
Purl
pkg:deb/debian/netpbm-free?arch=source&distro=trixie

Affected ranges

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

Affected versions

2:11.*
2:11.10.02-1
2:11.11.00-1
2:11.11.00-2
2:11.11.01-1
2:11.12.00-1
2:11.13.00-1
2:11.13.00-2
2:11.13.00-3
2:11.13.03-1
2:11.13.03+ds-1
2:11.13.03+ds-2
2:11.15.04+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120436.json"

Debian:14 / netpbm-free

Package

Name
netpbm-free
Purl
pkg:deb/debian/netpbm-free?arch=source&distro=forky

Affected ranges

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

Affected versions

2:11.*
2:11.10.02-1
2:11.11.00-1
2:11.11.00-2
2:11.11.01-1
2:11.12.00-1
2:11.13.00-1
2:11.13.00-2
2:11.13.00-3
2:11.13.03-1
2:11.13.03+ds-1
2:11.13.03+ds-2
2:11.15.04+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120436.json"