Use after free in Red Hat samba
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A malicious user in a samba AD could use this flaw to cause denial of service. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | samba | before 4.10.15; before 4.11.8; before 4.12.2 | 4.10.15, 4.11.8, 4.12.2 | Patch available | CNA |
- samba VendorRed Hat Affected before 4.10.15; before 4.11.8; before 4.12.2 Fixed in 4.10.15, 4.11.8, 4.12.2 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 4.10.0 to before 4.10.15; 4.11.0 to before 4.11.8; 4.12.0 to before 4.12.2 | Vulnerable | Samba |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | 15.2 | Vulnerable | openSUSE |
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.10.0 to before 4.10.15; 4.11.0 to before 4.11.8; 4.12.0 to before 4.12.2 Vulnerable ·Samba
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE
Remediation
- Fix · CNA samba (Red Hat) Fixed in 4.10.15, 4.11.8, 4.12.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat samba — FEDORA-2020-9cf0b1c8f1
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-08605 Uncontrolled recursion in Red Hat sambaPriority LOW 39
- Advisory ·
Red Hat samba — FEDORA-2020-e244c98af5
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-08605 Uncontrolled recursion in Red Hat sambaPriority LOW 39
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10700
- 2026-10-03 Alias added: GHSA-7g79-5vjp-6w3f
References
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Sources
- CVE-2020-10700 · CVE Program
- CVE-2020-10700 · NVD
- FIRST EPSS
- GHSA-7g79-5vjp-6w3f · GitHub Advisory Database · CC BY 4.0
- CVE-2020-10700 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences