Main Vulnerability Database Vulnerabilities #VU16953

Use-after-free in Irssi - CVE-2019-5882

Published: January 13, 2019

Vulnerability identifier: #VU16953

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-5882

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

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.

Affected software

Irssi
Arch Linux
Slackware Linux
Opensuse
Fedora
irssi (Alpine package)
irssi

How to mitigate CVE-2019-5882

Update to version 1.1.2.

Irssi - update to 1.1.2
irssi (Alpine package) - update to 1.1.2-r0
irssi - addressed in versions 1.1.2-1.fc28, 1.1.2-1.fc29

External References

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

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