what you don't know can hurt you

Ubuntu Security Notice USN-4217-1

Ubuntu Security Notice USN-4217-1
Posted Dec 10, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4217-1 - Andreas Oster discovered that the Samba DNS management server incorrectly handled certain records. An authenticated attacker could possibly use this issue to crash Samba, resulting in a denial of service. Isaac Boukris discovered that Samba did not enforce the Kerberos DelegationNotAllowed feature restriction, contrary to expectations.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2019-14861, CVE-2019-14870
MD5 | 35c60fc6f144781461cde60315d43abf

Ubuntu Security Notice USN-4217-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4217-1
December 10, 2019

samba vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Samba.

Software Description:
- samba: SMB/CIFS file, print, and login server for Unix

Details:

Andreas Oster discovered that the Samba DNS management server incorrectly
handled certain records. An authenticated attacker could possibly use this
issue to crash Samba, resulting in a denial of service. (CVE-2019-14861)

Isaac Boukris discovered that Samba did not enforce the Kerberos
DelegationNotAllowed feature restriction, contrary to expectations.
(CVE-2019-14870)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.10:
libsmbclient 2:4.10.7+dfsg-0ubuntu2.3
samba 2:4.10.7+dfsg-0ubuntu2.3

Ubuntu 19.04:
libsmbclient 2:4.10.0+dfsg-0ubuntu2.7
samba 2:4.10.0+dfsg-0ubuntu2.7

Ubuntu 18.04 LTS:
libsmbclient 2:4.7.6+dfsg~ubuntu-0ubuntu2.14
samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.14

Ubuntu 16.04 LTS:
libsmbclient 2:4.3.11+dfsg-0ubuntu0.16.04.24
samba 2:4.3.11+dfsg-0ubuntu0.16.04.24

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4217-1
CVE-2019-14861, CVE-2019-14870

Package Information:
https://launchpad.net/ubuntu/+source/samba/2:4.10.7+dfsg-0ubuntu2.3
https://launchpad.net/ubuntu/+source/samba/2:4.10.0+dfsg-0ubuntu2.7
https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~ubuntu-0ubuntu2.14
https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.24

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

April 2020

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    60 Files
  • 2
    Apr 2nd
    0 Files
  • 3
    Apr 3rd
    0 Files
  • 4
    Apr 4th
    0 Files
  • 5
    Apr 5th
    0 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    0 Files
  • 9
    Apr 9th
    0 Files
  • 10
    Apr 10th
    0 Files
  • 11
    Apr 11th
    0 Files
  • 12
    Apr 12th
    0 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    0 Files
  • 16
    Apr 16th
    0 Files
  • 17
    Apr 17th
    0 Files
  • 18
    Apr 18th
    0 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close