CVE-2017-5196

Ubuntu Security Notice USN-3184-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Irssi 0.8.18 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via vectors involving strings that are not UTF8.

Irssi 0.8.18 en versiones anteriores a 0.8.21 permite a atacantes remotos provocar una denegación de servicio (lectura fuera de límites y caída) a través de vectores que involucran cadenas que no son UTF8.

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. 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. 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. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-01-06 CVE Reserved
2017-01-20 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (4)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2017/01/06/1	Mailing List
http://www.securityfocus.com/bid/95310	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://irssi.org/security/irssi_sa_2017_01.txt	2019-03-19

URL	Date	SRC
https://security.gentoo.org/glsa/201701-45	2019-03-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Irssi Search vendor "Irssi"		Irssi Search vendor "Irssi" for product "Irssi"				>= 0.8.18 < 0.8.21 Search vendor "Irssi" for product "Irssi" and version " >= 0.8.18 < 0.8.21"		-		Affected