# CVE-2020-10700: ctdb: A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with...

CVE-2020-10700 is fixed in 16 products on 1 platform, first by ctdb 2:4.11.6+dfsg-0ubuntu1.1, released April 27, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-10700
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0203
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 27, 2020

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ctdb Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [ctdb 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ctdb-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | libnss-winbind Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [libnss-winbind 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-winbind-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | libpam-winbind Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [libpam-winbind 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpam-winbind-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | libsmbclient Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [libsmbclient 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libsmbclient-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | libwbclient0 Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [libwbclient0 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwbclient0-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | python3-samba Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [python3-samba 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-samba-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | registry-tools Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [registry-tools 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-registry-tools-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-common Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-common 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-common-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-common-bin Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-common-bin 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-common-bin-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-dsdb-modules Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-dsdb-modules 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-dsdb-modules-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-libs Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-libs 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-libs-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-testsuite Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-testsuite 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-testsuite-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | samba-vfs-modules Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [samba-vfs-modules 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-vfs-modules-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | smbclient Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [smbclient 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-smbclient-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |
| Linux | winbind Ubuntu 20.04 LTS (focal) | 2:4.11.6+dfsg-0ubuntu1.1 | [winbind 2:4.11.6+dfsg-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-winbind-2-4.11.6-dfsg-0ubuntu1.1.md) | Apr 27, 2020 |

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