vulnerability
Red Hat: CVE-2021-29923: incorrect parsing of extraneous zero characters at the beginning of an IP address octet (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:P/A:N) | Aug 7, 2021 | Sep 22, 2021 | Jul 28, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
Aug 7, 2021
Added
Sep 22, 2021
Modified
Jul 28, 2025
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.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-delveredhat-upgrade-delve-debuginforedhat-upgrade-delve-debugsourceredhat-upgrade-go-toolsetredhat-upgrade-golangredhat-upgrade-golang-binredhat-upgrade-golang-docsredhat-upgrade-golang-miscredhat-upgrade-golang-raceredhat-upgrade-golang-srcredhat-upgrade-golang-tests
References
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