CVE-2018-5206: Null Pointer Dereference
When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL pointer.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/irssito a version that resolves this vulnerability.Fixed in 1.0.4-1ubuntu2.2 - Upgrade
Upgrade
ubuntu/irssito a version that resolves this vulnerability.Fixed in 0.8.15-5ubuntu3.4 - Upgrade
Upgrade
ubuntu/irssito a version that resolves this vulnerability.Fixed in 0.8.19-1ubuntu1.6 - Upgrade
Upgrade
ubuntu/irssito a version that resolves this vulnerability.Fixed in 0.8.20-2ubuntu2.3 - Upgrade
Upgrade
debian/irssito a version that resolves this vulnerability.Fixed in 1.2.3-1Fixed in 1.4.3-2Fixed in 1.4.5-1 - Upgrade
Upgrade
alpine/irssito a version that resolves this vulnerability.Fixed in 1.0.6-r0
Event History
Frequently Asked Questions
What is the severity of CVE-2018-5206?
CVE-2018-5206 is considered a medium severity vulnerability due to potential NULL pointer dereference leading to crashes.
How do I fix CVE-2018-5206?
To mitigate CVE-2018-5206, upgrade Irssi to version 1.0.6 or later.
Which versions of Irssi are affected by CVE-2018-5206?
Irssi versions prior to 1.0.6 are vulnerable to CVE-2018-5206.
On which operating systems does CVE-2018-5206 affect Irssi?
CVE-2018-5206 affects Irssi installations on Debian and various Ubuntu distributions before the specified patched versions.
What kind of attack can exploit CVE-2018-5206?
CVE-2018-5206 can be exploited by attackers who can manipulate the channel topic without a sender, potentially crashing the application.