CVE-2023-34966
CVE-2023-34966 · Samba: infinite loop in mdssvc rpc service for spotlight
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 sl_unpack_loop() 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.
CVSS 7.5 · High · EPSS 62.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 8
- Versions
- ≥ 0:4.18.6-1.el8: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support
- Versions
- ≥ 0:4.15.5-15.el8_6: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 extended update support
- Versions
- ≥ 0:4.17.5-5.el8_8: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:4.18.6-100.el9: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 extended update support
- Versions
- ≥ 0:4.17.5-105.el9_2: Not affected (rpm)
No fix published
red hat virtualization 4 for red hat enterprise linux 8
- Versions
- ≥ 0:4.15.5-15.el8_6: Not affected (rpm)
No fix published
red hat enterprise linux 6
No fix published
red hat enterprise linux 7
No fix published
red hat storage 3
No fix published
samba Debian:12
- Versions
- 2:4.17.10+dfsg-0+deb12u1~bpo11+1
- 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
- 2:4.17.9+dfsg-0+deb12u3~bpo11+1
- Affected ranges
- ECOSYSTEM: < 2:4.17.10+dfsg-0+deb12u1
Update to 2:4.17.10+dfsg-0+deb12u1
samba Debian:13
- Affected ranges
- ECOSYSTEM: < 2:4.18.5+dfsg-1
Update to 2:4.18.5+dfsg-1
samba Debian:14
- Affected ranges
- ECOSYSTEM: < 2:4.18.5+dfsg-1
Update to 2:4.18.5+dfsg-1
samba Ubuntu:Pro:14.04:LTS
- Versions
- 2:3.6.18-1ubuntu3
- 2:4.0.10+dfsg-4ubuntu2
- 2:4.0.13+dfsg-1ubuntu1
- 2:4.1.3+dfsg-2ubuntu2
- 2:4.1.3+dfsg-2ubuntu3
- 2:4.1.3+dfsg-2ubuntu4
- 2:4.1.3+dfsg-2ubuntu5
- 2:4.1.6+dfsg-1ubuntu1
- 2:4.1.6+dfsg-1ubuntu2
- 2:4.1.6+dfsg-1ubuntu2.14.04.1
- 2:4.1.6+dfsg-1ubuntu2.14.04.2
- 2:4.1.6+dfsg-1ubuntu2.14.04.3
- 2:4.1.6+dfsg-1ubuntu2.14.04.4
- 2:4.1.6+dfsg-1ubuntu2.14.04.5
- 2:4.1.6+dfsg-1ubuntu2.14.04.7
- 2:4.1.6+dfsg-1ubuntu2.14.04.8
- 2:4.1.6+dfsg-1ubuntu2.14.04.9
- 2:4.1.6+dfsg-1ubuntu2.14.04.11
- 2:4.1.6+dfsg-1ubuntu2.14.04.12
- 2:4.1.6+dfsg-1ubuntu2.14.04.13
- 2:4.3.8+dfsg-0ubuntu0.14.04.2
- 2:4.3.9+dfsg-0ubuntu0.14.04.1
- 2:4.3.9+dfsg-0ubuntu0.14.04.3
- 2:4.3.11+dfsg-0ubuntu0.14.04.1
- 2:4.3.11+dfsg-0ubuntu0.14.04.2
- 2:4.3.11+dfsg-0ubuntu0.14.04.3
- 2:4.3.11+dfsg-0ubuntu0.14.04.4
- 2:4.3.11+dfsg-0ubuntu0.14.04.6
- 2:4.3.11+dfsg-0ubuntu0.14.04.7
- 2:4.3.11+dfsg-0ubuntu0.14.04.8
- 2:4.3.11+dfsg-0ubuntu0.14.04.9
- 2:4.3.11+dfsg-0ubuntu0.14.04.10
- 2:4.3.11+dfsg-0ubuntu0.14.04.11
- 2:4.3.11+dfsg-0ubuntu0.14.04.12
- 2:4.3.11+dfsg-0ubuntu0.14.04.13
- 2:4.3.11+dfsg-0ubuntu0.14.04.14
- 2:4.3.11+dfsg-0ubuntu0.14.04.16
- 2:4.3.11+dfsg-0ubuntu0.14.04.17
- 2:4.3.11+dfsg-0ubuntu0.14.04.19
- 2:4.3.11+dfsg-0ubuntu0.14.04.20
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm8
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm9
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11
- 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12
- Affected ranges
- ECOSYSTEM: < 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13
Update to 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm13
samba Ubuntu:Pro:16.04:LTS
- Versions
- 2:4.1.17+dfsg-4ubuntu2
- 2:4.1.20+dfsg-1ubuntu1
- 2:4.1.20+dfsg-1ubuntu2
- 2:4.1.20+dfsg-1ubuntu3
- 2:4.1.20+dfsg-1ubuntu5
- 2:4.3.3+dfsg-1ubuntu1
- 2:4.3.3+dfsg-1ubuntu2
- 2:4.3.3+dfsg-1ubuntu3
- 2:4.3.6+dfsg-1ubuntu1
- 2:4.3.8+dfsg-0ubuntu1
- 2:4.3.9+dfsg-0ubuntu0.16.04.1
- 2:4.3.9+dfsg-0ubuntu0.16.04.2
- 2:4.3.9+dfsg-0ubuntu0.16.04.3
- 2:4.3.11+dfsg-0ubuntu0.16.04.1
- 2:4.3.11+dfsg-0ubuntu0.16.04.3
- 2:4.3.11+dfsg-0ubuntu0.16.04.5
- 2:4.3.11+dfsg-0ubuntu0.16.04.6
- 2:4.3.11+dfsg-0ubuntu0.16.04.7
- 2:4.3.11+dfsg-0ubuntu0.16.04.8
- 2:4.3.11+dfsg-0ubuntu0.16.04.9
- 2:4.3.11+dfsg-0ubuntu0.16.04.10
- 2:4.3.11+dfsg-0ubuntu0.16.04.11
- 2:4.3.11+dfsg-0ubuntu0.16.04.12
- 2:4.3.11+dfsg-0ubuntu0.16.04.13
- 2:4.3.11+dfsg-0ubuntu0.16.04.15
- 2:4.3.11+dfsg-0ubuntu0.16.04.16
- 2:4.3.11+dfsg-0ubuntu0.16.04.17
- 2:4.3.11+dfsg-0ubuntu0.16.04.18
- 2:4.3.11+dfsg-0ubuntu0.16.04.19
- 2:4.3.11+dfsg-0ubuntu0.16.04.20
- 2:4.3.11+dfsg-0ubuntu0.16.04.21
- 2:4.3.11+dfsg-0ubuntu0.16.04.23
- 2:4.3.11+dfsg-0ubuntu0.16.04.24
- 2:4.3.11+dfsg-0ubuntu0.16.04.25
- 2:4.3.11+dfsg-0ubuntu0.16.04.26
- 2:4.3.11+dfsg-0ubuntu0.16.04.27
- 2:4.3.11+dfsg-0ubuntu0.16.04.28
- 2:4.3.11+dfsg-0ubuntu0.16.04.29
- 2:4.3.11+dfsg-0ubuntu0.16.04.30
- 2:4.3.11+dfsg-0ubuntu0.16.04.31
- 2:4.3.11+dfsg-0ubuntu0.16.04.32
- 2:4.3.11+dfsg-0ubuntu0.16.04.34
- 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm1
- Affected ranges
- ECOSYSTEM: < 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2
Update to 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2
samba Ubuntu:Pro:18.04:LTS
- Versions
- 2:4.6.7+dfsg-1ubuntu3
- 2:4.7.1+dfsg-1ubuntu1
- 2:4.7.3+dfsg-1ubuntu1
- 2:4.7.4+dfsg-1ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu1
- 2:4.7.6+dfsg~ubuntu-0ubuntu2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.2
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.4
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.6
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.7
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.9
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.10
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.11
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.13
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.14
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.15
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.16
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.17
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.18
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.19
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.20
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.21
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.23
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.24
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.26
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.27
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.28
- 2:4.7.6+dfsg~ubuntu-0ubuntu2.29
- Affected ranges
- ECOSYSTEM: < 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1
Update to 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1
samba Ubuntu:20.04:LTS
- Versions
- 2:4.10.7+dfsg-0ubuntu2
- 2:4.10.7+dfsg-0ubuntu3
- 2:4.11.1+dfsg-3ubuntu1
- 2:4.11.1+dfsg-3ubuntu2
- 2:4.11.1+dfsg-3ubuntu4
- 2:4.11.5+dfsg-1ubuntu1
- 2:4.11.5+dfsg-1ubuntu2
- 2:4.11.6+dfsg-0ubuntu1
- 2:4.11.6+dfsg-0ubuntu1.1
- 2:4.11.6+dfsg-0ubuntu1.2
- 2:4.11.6+dfsg-0ubuntu1.3
- 2:4.11.6+dfsg-0ubuntu1.4
- 2:4.11.6+dfsg-0ubuntu1.5
- 2:4.11.6+dfsg-0ubuntu1.6
- 2:4.11.6+dfsg-0ubuntu1.8
- 2:4.11.6+dfsg-0ubuntu1.9
- 2:4.11.6+dfsg-0ubuntu1.10
- 2:4.13.14+dfsg-0ubuntu0.20.04.1
- 2:4.13.14+dfsg-0ubuntu0.20.04.2
- 2:4.13.14+dfsg-0ubuntu0.20.04.3
- 2:4.13.14+dfsg-0ubuntu0.20.04.4
- 2:4.13.17~dfsg-0ubuntu0.21.04.1
- 2:4.13.17~dfsg-0ubuntu0.21.04.2
- 2:4.13.17~dfsg-0ubuntu1.20.04.1
- 2:4.13.17~dfsg-0ubuntu1.20.04.2
- 2:4.13.17~dfsg-0ubuntu1.20.04.4
- 2:4.13.17~dfsg-0ubuntu1.20.04.5
- 2:4.15.13+dfsg-0ubuntu0.20.04.1
- 2:4.15.13+dfsg-0ubuntu0.20.04.2
- Affected ranges
- ECOSYSTEM: < 2:4.15.13+dfsg-0ubuntu0.20.04.3
Update to 2:4.15.13+dfsg-0ubuntu0.20.04.3
samba Ubuntu:22.04:LTS
- Versions
- 2:4.13.5+dfsg-2ubuntu2
- 2:4.13.5+dfsg-2ubuntu3
- 2:4.13.14+dfsg-0ubuntu1
- 2:4.13.14+dfsg-0ubuntu2
- 2:4.15.5~dfsg-0ubuntu1
- 2:4.15.5~dfsg-0ubuntu2
- 2:4.15.5~dfsg-0ubuntu4
- 2:4.15.5~dfsg-0ubuntu5
- 2:4.15.5~dfsg-0ubuntu5.1
- 2:4.15.9+dfsg-0ubuntu0.2
- 2:4.15.9+dfsg-0ubuntu0.3
- 2:4.15.13+dfsg-0ubuntu1
- 2:4.15.13+dfsg-0ubuntu1.1
- Affected ranges
- ECOSYSTEM: < 2:4.15.13+dfsg-0ubuntu1.2
Update to 2:4.15.13+dfsg-0ubuntu1.2
Original sources
- https://access.redhat.com/errata/RHSA-2023:6667
- https://access.redhat.com/errata/RHSA-2023:7139
- https://access.redhat.com/errata/RHSA-2024:0423
- https://access.redhat.com/errata/RHSA-2024:0580
- https://access.redhat.com/errata/RHSA-2024:4101
- https://access.redhat.com/security/cve/CVE-2023-34966
- https://bugzilla.redhat.com/show_bug.cgi?id=2222793
- https://www.samba.org/samba/security/CVE-2023-34966
- https://lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
- https://security.netapp.com/advisory/ntap-20230731-0010/
- https://www.debian.org/security/2023/dsa-5477
- https://nvd.nist.gov/vuln/detail/CVE-2023-34966