DEBIAN-CVE-2026-18938

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18938
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18938.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18938
Upstream
  • CVE-2026-18938
Published
2026-08-07T09:16:58Z
Modified
2026-09-14T17:02:38Z
Severity
  • 6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

References

Affected packages

Debian:12 / p11-kit

Package

Name
p11-kit
Purl
pkg:deb/debian/p11-kit?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.24.1-2
0.24.1-2+loong64
0.25.0-1
0.25.0-2
0.25.0-3
0.25.0-4
0.25.0-5
0.25.1-1
0.25.2-1
0.25.3-1
0.25.3-2
0.25.3-3
0.25.3-4
0.25.3-5
0.25.5-1
0.25.5-2
0.25.5-3
0.25.9-1
0.25.9-2
0.25.10-1
0.26.2-1
0.26.2-2
0.26.2-3
0.26.4-1
0.26.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18938.json"

Debian:13 / p11-kit

Package

Name
p11-kit
Purl
pkg:deb/debian/p11-kit?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.25.5-3
0.25.9-1
0.25.9-2
0.25.10-1
0.26.2-1
0.26.2-2
0.26.2-3
0.26.4-1
0.26.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18938.json"

Debian:14 / p11-kit

Package

Name
p11-kit
Purl
pkg:deb/debian/p11-kit?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.26.5-1

Affected versions

0.*
0.25.5-3
0.25.9-1
0.25.9-2
0.25.10-1
0.26.2-1
0.26.2-2
0.26.2-3
0.26.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18938.json"