CVE-2021-29376
HIGHCVSS 7.5/10EPSS 2.33%
Last modified
CVE-2021-29376 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.. EPSS estimates a 2.33% chance of exploitation in the next 30 days.
Description
ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Eterna | Ircii | < 20210314 |
| Debian | Debian Linux | 9.0 |
References
- http://www.eterna.com.au/ircii/Product, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/03/30/4Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00023.htmlMailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/03/24/2Mailing List, Third Party Advisory
- http://www.eterna.com.au/ircii/Product, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/03/30/4Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00023.htmlMailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/03/24/2Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29376?
ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.
How severe is CVE-2021-29376?
CVE-2021-29376 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29376?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-29376?
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Scan your code nowSource: NVD / NIST