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

critical Nessus Plugin ID 106881

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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?11c0294b

Plugin Details

Severity: Critical

ID: 106881

File Name: freebsd_pkg_7afc5e56156d11e895f2005056925db4.nasl

Version: 3.4

Type: local

Published: 2/20/2018

Updated: 11/10/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: Critical

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: 2/19/2018

Vulnerability Publication Date: 2/15/2018

Reference Information

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