- Vulnerability/
- USN-3827-1
USN-3827-1: Samba vulnerabilities
First published: Tue Nov 27 2018(Updated: )
Florian Stuelpner discovered that Samba incorrectly handled CNAME records. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2018-14629) Alex MacCuish discovered that Samba incorrectly handled memory when configured to accept smart-card authentication. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2018-16841) Garming Sam discovered that Samba incorrectly handled memory when processing LDAP searches. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. (CVE-2018-16851)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/samba | <2:4.8.4+dfsg-2ubuntu2.1 | 2:4.8.4+dfsg-2ubuntu2.1 |
| Ubuntu OpenSSH Client | =18.10 | |
| All of | ||
| ubuntu/samba | <2:4.7.6+dfsg~ubuntu-0ubuntu2.5 | 2:4.7.6+dfsg~ubuntu-0ubuntu2.5 |
| Ubuntu OpenSSH Client | =18.04 | |
| All of | ||
| ubuntu/samba | <2:4.3.11+dfsg-0ubuntu0.16.04.18 | 2:4.3.11+dfsg-0ubuntu0.16.04.18 |
| Ubuntu OpenSSH Client | =16.04 | |
| All of | ||
| ubuntu/samba | <2:4.3.11+dfsg-0ubuntu0.14.04.19 | 2:4.3.11+dfsg-0ubuntu0.14.04.19 |
| Ubuntu OpenSSH Client | =14.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2018-14629
- https://ubuntu.com/security/CVE-2018-16841
- https://ubuntu.com/security/CVE-2018-16851
- https://ubuntu.com/security/notices/USN-3827-2
- https://launchpad.net/ubuntu/+source/samba/2:4.8.4+dfsg-2ubuntu2.1
- https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~ubuntu-0ubuntu2.5
- https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.18
- https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04.19
- https://ubuntu.com/security/notices/USN-3827-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-3827-1?
The severity of USN-3827-1 is high due to the potential for denial of service attacks.
How do I fix USN-3827-1?
To fix USN-3827-1, update Samba to the patched versions provided in the advisory for your Ubuntu release.
What versions of Samba are affected by USN-3827-1?
USN-3827-1 affects Samba versions prior to 2:4.8.4+dfsg-2ubuntu2.1, 2:4.7.6+dfsg~ubuntu-0ubuntu2.5, and 2:4.3.11+dfsg-0ubuntu0.16.04.18.
Can USN-3827-1 be exploited remotely?
Yes, USN-3827-1 can potentially be exploited by remote attackers to crash the Samba service.
What distributions are impacted by USN-3827-1?
USN-3827-1 impacts Ubuntu versions 14.04, 16.04, 18.04, and 18.10.
- agent/type
- agent/severity
- agent/last-modified-date
- agent/first-publish-date
- agent/references
- agent/title
- agent/description
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/usn
- source/Ubuntu
- anchor-related/USN-3827-2
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu openssh client
- version/ubuntu openssh client/18.10
- version/ubuntu openssh client/18.04
- version/ubuntu openssh client/16.04
- version/ubuntu openssh client/14.04