DEBIAN-CVE-2023-34966

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Source
https://security-tracker.debian.org/tracker/CVE-2023-34966
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-34966.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-34966
Upstream
Published
2023-07-20T15:15:11Z
Modified
2025-09-25T23:29:41.915826Z
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

An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function slunpackloop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.

References

Affected packages

Debian:11 / samba

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.13.13+dfsg-1~deb11u6

Affected versions

2:4.*

2:4.13.5+dfsg-2
2:4.13.13+dfsg-1~deb11u1
2:4.13.13+dfsg-1~deb11u2
2:4.13.13+dfsg-1~deb11u3
2:4.13.13+dfsg-1~deb11u4
2:4.13.13+dfsg-1~deb11u5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / samba

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.17.10+dfsg-0+deb12u1

Affected versions

2:4.*

2:4.17.8+dfsg-2
2:4.17.8+dfsg-2.1
2:4.17.9+dfsg-0+deb12u1
2:4.17.9+dfsg-0+deb12u2
2:4.17.9+dfsg-0+deb12u3~bpo11+1
2:4.17.9+dfsg-0+deb12u3
2:4.17.10+dfsg-0+deb12u1~bpo11+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / samba

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.18.5+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / samba

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.18.5+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}