Denial of service in Irssi



Published: 2019-01-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-5882
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Irssi
Client/Desktop applications / Messaging software

Vendor Irssi.org

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU16953

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5882

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to conduct DoS attack.

The vulnerability exists due to a use-after-free error when hidden lines are expired from the scroll buffer. A remote attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update to version 1.1.2.

Vulnerable software versions

Irssi: 1.1.0 - 1.1.1

External links

http://github.com/irssi/irssi/pull/948
http://irssi.org/NEWS/#v1-1-2
http://irssi.org/security/irssi_sa_2019_01.txt


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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