Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : irssi vulnerabilities (USN-3184-1)

Ubuntu Security Notice (C) 2017 Canonical, Inc. / NASL script (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

It was discovered that the Irssi buf.pl script set incorrect
permissions. A local attacker could use this issue to retrieve another
user's window contents. (CVE-2016-7553)

Joseph Bisch discovered that Irssi incorrectly handled comparing
nicks. A remote attacker could use this issue to cause Irssi to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-5193)

It was discovered that Irssi incorrectly handled invalid nick
messages. A remote attacker could use this issue to cause Irssi to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2017-5194)

Joseph Bisch discovered that Irssi incorrectly handled certain
incomplete control codes. A remote attacker could use this issue to
cause Irssi to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 16.10. (CVE-2017-5195)

Hanno Bock and Joseph Bisch discovered that Irssi incorrectly handled
certain incomplete character sequences. A remote attacker could use
this issue to cause Irssi to crash, resulting in a denial of service.
This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2017-5196)

Hanno Bock discovered that Irssi incorrectly handled certain format
strings. A remote attacker could use this issue to cause Irssi to
crash, resulting in a denial of service. (CVE-2017-5356).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected irssi package.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 96953 ()

Bugtraq ID:

CVE ID: CVE-2016-7553
CVE-2017-5193
CVE-2017-5194
CVE-2017-5195
CVE-2017-5196
CVE-2017-5356

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