Ubuntu update for Irssi

Published: 2016-09-21

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2016-7044 CVE-2016-7045
CWE-ID	CWE-126 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Arbitrary code execution

EUVDB-ID: #VU632

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-7044

CWE-ID: CWE-126 - Buffer over-read

Exploit availability: No

Description

The vulnerability allows a remote user to cause arbitrary code execution on the target system.
The weakness exists due to input validation error. Having tricked the victim into loading specially crafted file attackers can invoke a buffer overflow in format_send_to_gui() and execute arbitrary code.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation

Update the affected packages

Ubuntu 16.04 LTS:

irssi 0.8.19-1ubuntu1.2

Vulnerable software versions

Ubuntu: 16.04

CPE2.3

cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-3086-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Arbitrary code execution

EUVDB-ID: #VU633