DEBIAN-CVE-2018-5709

Source
https://security-tracker.debian.org/tracker/CVE-2018-5709
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-5709.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2018-5709
Upstream
Published
2018-01-16T09:29:00Z
Modified
2025-09-30T05:12:30.320712Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->nkeydata" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.

References

Affected packages

Debian:11 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

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

Affected versions

1.*

1.18.3-6
1.18.3-6+deb11u1
1.18.3-6+deb11u2
1.18.3-6+deb11u3
1.18.3-6+deb11u4
1.18.3-6+deb11u5
1.18.3-6+deb11u6
1.18.3-6+deb11u7
1.18.3-7
1.19.2-1
1.19.2-2
1.20~beta1-1
1.20-1
1.20.1-1
1.20.1-2
1.20.1-2+loong64
1.20.1-3
1.20.1-4
1.20.1-5
1.20.1-5.1~exp1
1.20.1-5.1
1.20.1-6
1.21.2-1
1.21.3-1
1.21.3-2
1.21.3-3
1.21.3-4
1.21.3-5

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:12 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

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

Affected versions

1.*

1.20.1-2
1.20.1-2+deb12u1
1.20.1-2+deb12u2
1.20.1-2+deb12u3
1.20.1-2+deb12u4
1.20.1-2+loong64
1.20.1-3
1.20.1-4
1.20.1-5
1.20.1-5.1~exp1
1.20.1-5.1
1.20.1-6
1.21.2-1
1.21.3-1
1.21.3-2
1.21.3-3
1.21.3-4
1.21.3-5

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:13 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

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

Affected versions

1.*

1.21.3-5

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:14 / krb5

Package

Name
krb5
Purl
pkg:deb/debian/krb5?arch=source

Affected ranges

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

Affected versions

1.*

1.21.3-5

Ecosystem specific

{
    "urgency": "unimportant"
}