CVE-2021-44847
Last modified
CVE-2021-44847 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet.. EPSS estimates a 3.95% chance of exploitation in the next 30 days.
Description
A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Toktok | Toxcore | >= 0.1.9, <= 0.1.11 |
| Toktok | Toxcore | >= 0.2.0, <= 0.2.12 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
References
- https://github.com/TokTok/c-toxcore/pull/1718Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/TokTok/c-toxcore/pull/1718Exploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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.
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