What’s Vulnerable › Vulnerabilities

CVE-2018-7053

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-02-15 · updated 2026-06-17
• Weakness: CWE-416

Description

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. There is a use-after-free when SASL messages are received in an unexpected order.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 17.10
• Debian Linux: 9.0
• Irssi: before 1.0.7; 1.1.0 — fixed in 1.0.7

How to fix

Upgrade to a fixed version: Irssi 1.0.7. Check the vendor advisory for mitigations.

References

• http://openwall.com/lists/oss-security/2018/02/15/1
• https://irssi.org/security/irssi_sa_2018_02.txt
• https://usn.ubuntu.com/3590-1/
• https://www.debian.org/security/2018/dsa-4162
• http://openwall.com/lists/oss-security/2018/02/15/1
• https://irssi.org/security/irssi_sa_2018_02.txt
• https://usn.ubuntu.com/3590-1/
• https://www.debian.org/security/2018/dsa-4162

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