CVE-2018-7054: Use After Free
First published: Thu Feb 15 2018(Updated: )
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 a server is disconnected during netsplits. NOTE: this issue exists because of an incomplete fix for CVE-2017-7191.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/irssi | 1.2.3-1 1.4.3-2 1.4.5-1 | |
| Irssi | <1.0.7 | |
| Irssi | =1.1.0 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =17.10 | |
| Debian | =9.0 |
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Reference Links
- 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://usn.ubuntu.com/4046-1/
- https://www.debian.org/security/2018/dsa-4162
- https://launchpad.net/bugs/cve/CVE-2018-7054
- https://github.com/irssi/irssi/commit/7605f67f95b6ee1ac26dd8fb7f3121f319497943
- https://github.com/irssi/irssi/commit/fa8508404f4c4a02749cae5148662e2322c2abf0
- https://github.com/irssi/irssi/commit/a4f99ae746efb121185fe76c392a64d743a9eb92
- https://security-tracker.debian.org/tracker/CVE-2018-7054
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7054
- https://nvd.nist.gov/vuln/detail/CVE-2018-7054
- https://ubuntu.com/security/CVE-2018-7054
Frequently Asked Questions
What is the severity of CVE-2018-7054?
CVE-2018-7054 has a severity rating of medium due to the potential for exploitation through a use-after-free condition.
How do I fix CVE-2018-7054?
To fix CVE-2018-7054, update Irssi to version 1.0.7 or higher, or to versions 1.1.1 and above.
What software is affected by CVE-2018-7054?
CVE-2018-7054 affects Irssi versions before 1.0.7 and 1.1.0, specifically those released in the 1.1.x series prior to 1.1.1.
What does CVE-2018-7054 impact in terms of functionality?
CVE-2018-7054 impacts the stability of the Irssi client by potentially allowing an attacker to cause a crash or execute arbitrary code.
Is there any known exploitation of CVE-2018-7054 in the wild?
As of now, there have been no reported cases of active exploitation of CVE-2018-7054 in the wild.
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