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RHEL 7 : irssi (Unpatched Vulnerability)

critical Nessus Plugin ID 196841

Synopsis

The remote Red Hat 7 host is affected by multiple vulnerabilities that will not be patched.

Description

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

 - irssi: heap buffer overflow due to calculation error in the completion code (CVE-2018-5208)

 - The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file. (CVE-2016-7553)

 - An issue was discovered in Irssi before 1.0.4. When receiving messages with invalid time stamps, Irssi would try to dereference a NULL pointer. (CVE-2017-10965)

 - An issue was discovered in Irssi before 1.0.4. While updating the internal nick list, Irssi could incorrectly use the GHashTable interface and free the nick while updating it. This would then result in use-after-free conditions on each access of the hash table. (CVE-2017-10966)

 - Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on. (CVE-2017-15227)

 - Irssi before 1.0.5, when installing themes with unterminated colour formatting sequences, may access data beyond the end of the string. (CVE-2017-15228)

 - In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468. (CVE-2017-15721)

 - In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the string. (CVE-2017-15722)

 - The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick. (CVE-2017-5193)

 - Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick message. (CVE-2017-5194)

 - Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]). (CVE-2017-5356)

 - In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a crash. (CVE-2017-9468)

 - In Irssi before 1.0.3, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory. Thus, remote attackers might be able to cause a crash. (CVE-2017-9469)

 - When using incomplete escape codes, Irssi before 1.0.6 may access data beyond the end of the string.
 (CVE-2018-5205)

 - When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL pointer. (CVE-2018-5206)

 - When using an incomplete variable argument, Irssi before 1.0.6 may access data beyond the end of the string. (CVE-2018-5207)

 - An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an empty nick. (CVE-2018-7050)

 - An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Certain nick names could result in out-of-bounds access when printing theme strings. (CVE-2018-7051)

 - An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. When the number of windows exceeds the available space, a crash due to a NULL pointer dereference would occur. (CVE-2018-7052)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

Solution

The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation guidance.

Plugin Details

Severity: Critical

ID: 196841

File Name: redhat_unpatched-irssi-rhel7.nasl

Version: 1.0

Type: local

Agent: unix

Published: 5/11/2024

Updated: 5/11/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-5208

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:irssi

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 9/26/2016

Reference Information

CVE: CVE-2016-7553, CVE-2017-10965, CVE-2017-10966, CVE-2017-15227, CVE-2017-15228, CVE-2017-15721, CVE-2017-15722, CVE-2017-5193, CVE-2017-5194, CVE-2017-5356, CVE-2017-9468, CVE-2017-9469, CVE-2018-5205, CVE-2018-5206, CVE-2018-5207, CVE-2018-5208, CVE-2018-7050, CVE-2018-7051, CVE-2018-7052