CVE-2021-29418

Description

The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory github.com Third-Party Advisory netapp.com Third-Party Advisory ryotak.me
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/rs/node-netmask/commit/3f19a056c4eb808ea4a29f234274c67bc5a848f4 third party advisory patch
https://vuln.ryotak.me/advisories/6 third party advisory
https://security.netapp.com/advisory/ntap-20210604-0001/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-29418?
CVE-2021-29418 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29418?
To fix CVE-2021-29418, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29418 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29418 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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