CVE-2021-29923
- State
- Published
- Severity
- Not scored
- Published
- Aug 7, 2021
- Updated
- Aug 3, 2024
- Reserved
- Apr 1, 2021
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://golang.org/pkg/net/#ParseCIDR
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis
- https://github.com/golang/go/issues/43389
- https://github.com/golang/go/issues/30999
- https://go-review.googlesource.com/c/go/+/325829/
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md
- FEDORA-2022-17d004ed71vendor-advisory
- GLSA-202208-02vendor-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.