CVE-2018-1000179

Ubuntu Security Notice USN-4594-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login &msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.

Existe una desreferencia de puntero NULL de tipo CWE-476 en quassel 0.12.4 en quasselcore en void DataStreamPeer::processMessage(const QByteArray msg) datastreampeer.cpp line 235 que permite que un atacante provoque una denegación de servicio (DoS).

It was discovered that Quassel incorrectly handled Qdatastream protocol. A remote attacker could possibly use this issue to execute arbitrary code. It was discovered that Quassel incorrectly handled certain login requests. A remote attacker could possibly use this issue to cause a denial of service.

*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

2018-04-23 CVE Reserved
2018-05-04 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-04-08 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/201806-04	2020-10-26
https://usn.ubuntu.com/4594-1	2020-10-26
https://www.debian.org/security/2018/dsa-4189	2020-10-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Quassel-irc Search vendor "Quassel-irc"		Quassel Search vendor "Quassel-irc" for product "Quassel"				0.12.4 Search vendor "Quassel-irc" for product "Quassel" and version "0.12.4"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected