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CVE-2018-1000179

A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void...

7.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.28%Up 1.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.5

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.

Record
CVE-2018-1000179
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-476
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2018-1000179
Updated
2026-11-02
EUVDEUVD-2018-1872 No score

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.

Record
EUVD-2018-1872
Updated
2026-11-03
GitHub AdvisoriesGHSA-6mrg-x4pw-vhr6 7.5

A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void...

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.

Record
GHSA-6mrg-x4pw-vhr6
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
OSV 7.5

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.

Record
CVE-2018-1000179
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-1000179 7.5

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.

Record
DEBIAN-CVE-2018-1000179
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSVUBUNTU-CVE-2018-1000179 7.5

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.

Record
UBUNTU-CVE-2018-1000179
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2018-0243 No score

Updated quassel packages fix security vulnerabilities

A heap corruption exists in quassel version 0.12.4 in quasselcore that allows an attacker to execute code remotely (CVE-2018-1000178).

A NULL Pointer Dereference exists in quassel version 0.12.4 in the quasselcore that allows an atacker to denial of service by attempting a login when the database is not initialized (CVE-2018-1000179).

The Mageia 5 package has been patched to fix these issues and the Mageia 6 package has been upgraded to version 0.12.5, which also has other fixes and improvements.

Record
MGASA-2018-0243
Updated
2026-11-02
OSVopenSUSE-SU-2024:11291-1 No score

quassel-base-0.13.1-4.10 on GA media

These are all security issues fixed in the quassel-base-0.13.1-4.10 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11291-1
Updated
2026-11-02
OSVUSN-4594-1 No score

quassel vulnerabilities

It was discovered that Quassel incorrectly handled Qdatastream protocol. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-1000178)

It was discovered that Quassel incorrectly handled certain login requests. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2018-1000179)

Record
USN-4594-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
quassel
Debian:12
 before 1:0.12.5-1
1:0.12.5-1
quassel
Debian:13
 before 1:0.12.5-1
1:0.12.5-1
quassel
Debian:14
 before 1:0.12.5-1
1:0.12.5-1
quassel
Debian:8
From an advisory covering 2 CVEs
 before 1:0.10.0-2.3+deb8u4, plus listed versions
1:0.10.0-2.31:0.10.0-2.3+deb8u11:0.10.0-2.3+deb8u21:0.10.0-2.3+deb8u3
1:0.10.0-2.3+deb8u4
quassel
Debian:9
From an advisory covering 2 CVEs
 before 1:0.12.4-2+deb9u1, plus listed versions
1:0.12.4-2
1:0.12.4-2+deb9u1
quassel
Mageia:5
From an advisory covering 2 CVEs
 before 0.10.1-5.3.mga5
0.10.1-5.3.mga5
quassel
Mageia:6
From an advisory covering 2 CVEs
 before 0.12.5-1.mga6
0.12.5-1.mga6
quassel
Ubuntu:14.04:LTS
 before 0.10.0-0ubuntu2.3, plus listed versions
0.9.1-0ubuntu10.9.2-0ubuntu10.9.2-0ubuntu20.9.2-0ubuntu30.9.2-0ubuntu4
Show 6 moreShow less
0.10~beta1-0ubuntu10.10~rc1-0ubuntu10.10.0-0ubuntu10.10.0-0ubuntu20.10.0-0ubuntu2.10.10.0-0ubuntu2.2
0.10.0-0ubuntu2.3
quassel
Ubuntu:16.04:LTS
 All versions, plus listed versions
0.12.2-0ubuntu10.12.2-0ubuntu1.16.04.2
 None known
quassel
Ubuntu:18.04:LTS
 before 1:0.12.4-3ubuntu1.18.04.3, plus listed versions
1:0.12.4-2ubuntu21:0.12.4-2ubuntu31:0.12.4-3ubuntu11:0.12.4-3ubuntu1.18.04.11:0.12.4-3ubuntu1.18.04.2
1:0.12.4-3ubuntu1.18.04.3
quassel
Ubuntu:18.04:LTS
From an advisory covering 2 CVEs
 before 1:0.12.4-3ubuntu1.18.04.3, plus listed versions
1:0.12.4-2ubuntu21:0.12.4-2ubuntu31:0.12.4-3ubuntu11:0.12.4-3ubuntu1.18.04.11:0.12.4-3ubuntu1.18.04.2
1:0.12.4-3ubuntu1.18.04.3

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1000179 is a high vulnerability (CVSS 7.5) in Quassel-irc Quassel, published May 2, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.28%, the 83rd percentile. Fixed in quassel 1:0.12.5-1.

References

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