FreeBSD : irssi -- multiple vulnerabilities (7afc5e56-156d-11e8-95f2-005056925db4)

High Nessus Plugin ID 106881

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

Irssi reports :

Use after free when server is disconnected during netsplits. Found by Joseph Bisch.

Use after free when SASL messages are received in unexpected order.
Found by Joseph Bisch.

NULL pointer dereference when an 'empty' nick has been observed by Irssi. Found by Joseph Bisch.

When the number of windows exceed the available space, Irssi would crash due to NULL pointer dereference. Found by Joseph Bisch.

Certain nick names could result in out of bounds access when printing theme strings. Found by Oss-Fuzz.

Solution

Update the affected package.

See Also

https://irssi.org/security/irssi_sa_2018_02.txt

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226001

http://www.nessus.org/u?8bacf5ba

Plugin Details

Severity: High

ID: 106881

File Name: freebsd_pkg_7afc5e56156d11e895f2005056925db4.nasl

Version: $Revision: 3.3 $

Type: local

Published: 2018/02/20

Modified: 2018/02/26

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSSv3

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:irssi, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2018/02/19

Vulnerability Publication Date: 2018/02/15

Reference Information

CVE: CVE-2018-7050, CVE-2018-7051, CVE-2018-7052, CVE-2018-7053, CVE-2018-7054