ldb-tools: A flaw was found in samba
CVE-2020-27840 is fixed in 5 products on 1 platform, first by ldb-tools 2:1.2.3-1ubuntu0.2, released March 23, 2021. It is not reported as exploited. Patch Radar priority: High.
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ldb-tools · Ubuntu 18.04.6 LTS (bionic) | 2:1.2.3-1ubuntu0.2 | ldb-tools 2:1.2.3-1ubuntu0.2 | Mar 23, 2021 |
| ldb-tools · Ubuntu 20.04 LTS (focal) | 2:2.0.10-0ubuntu0.20.04.3 | ldb-tools 2:2.0.10-0ubuntu0.20.04.3 | Mar 23, 2021 |
| libldb1 · Ubuntu 18.04.6 LTS (bionic) | 2:1.2.3-1ubuntu0.2 | libldb1 2:1.2.3-1ubuntu0.2 | Mar 23, 2021 |
| libldb2 · Ubuntu 20.04 LTS (focal) | 2:2.0.10-0ubuntu0.20.04.3 | libldb2 2:2.0.10-0ubuntu0.20.04.3 | Mar 23, 2021 |
| python-ldb · Ubuntu 18.04.6 LTS (bionic) | 2:1.2.3-1ubuntu0.2 | python-ldb 2:1.2.3-1ubuntu0.2 | Mar 23, 2021 |
| python3-ldb · Ubuntu 20.04 LTS (focal) | 2:2.0.10-0ubuntu0.20.04.3 | python3-ldb 2:2.0.10-0ubuntu0.20.04.3 | Mar 23, 2021 |
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