CVE-2021-27419
Last modified
CVE-2021-27419 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.. EPSS estimates a 1.46% chance of exploitation in the next 30 days.
Description
uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
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 |
|---|---|---|
| Uclibc-Ng Project | Uclibc-Ng | < 1.0.37 |
References
- https://downloads.uclibc-ng.org/releases/Product, Release Notes, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource
- https://downloads.uclibc-ng.org/releases/Product, Release Notes, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource
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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