CVE-2021-29923
7.5
HIGH
CVSS 3.1
EPSS 0.25%
Description
Go before 1.17 does not properly consider extraneous zero characters at the beginning of an IP address octet, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation. This affects net.ParseIP and net.ParseCIDR.
How to fix CVE-2021-29923
To remediate CVE-2021-29923, upgrade the affected package to a fixed version below.
- Bitnami/golang—upgrade to 1.17.0 or later
- —no fix listed
Is CVE-2021-29923 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.17.0
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |