Lucene search

K
ubuntuUbuntuUSN-3276-2
HistoryMay 17, 2017 - 12:00 a.m.

shadow regression

2017-05-1700:00:00
ubuntu.com
24

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.6 Medium

AI Score

Confidence

High

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

5.3%

Releases

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • shadow - system login tools

Details

USN-3276-1 intended to fix a vulnerability in su. The solution introduced
a regression in su signal handling. This update modifies the security fix.
We apologize for the inconvenience.

Original advisory details:

Sebastian Krahmer discovered integer overflows in shadow utilities.
A local attacker could possibly cause them to crash or potentially
gain privileges via crafted input. (CVE-2016-6252)

Tobias Stöckmann discovered a race condition in su. A local
attacker could cause su to send SIGKILL to other processes with
root privileges. (CVE-2017-2616)

OSVersionArchitecturePackageVersionFilename
Ubuntu17.04noarchlogin< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu17.04noarchlogin-dbgsym< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu17.04noarchpasswd< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu17.04noarchpasswd-dbgsym< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu17.04noarchuidmap< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu17.04noarchuidmap-dbgsym< 1:4.2-3.2ubuntu1.17.04.2UNKNOWN
Ubuntu16.10noarchlogin< 1:4.2-3.2ubuntu1.16.10.2UNKNOWN
Ubuntu16.10noarchlogin-dbgsym< 1:4.2-3.2ubuntu1.16.10.2UNKNOWN
Ubuntu16.10noarchpasswd< 1:4.2-3.2ubuntu1.16.10.2UNKNOWN
Ubuntu16.10noarchpasswd-dbgsym< 1:4.2-3.2ubuntu1.16.10.2UNKNOWN
Rows per page:
1-10 of 241

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.6 Medium

AI Score

Confidence

High

4.7 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

5.3%