Improper Input Validation Affecting golang package, versions <0:1.15.14-2.module+el8.4.0+12542+e3fec473
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Test your applications- Snyk ID SNYK-CENTOS8-GOLANG-2119188
- published 17 Aug 2021
- disclosed 22 Mar 2021
Introduced: 22 Mar 2021
CVE-2021-29923 Open this link in a new tabHow to fix?
Upgrade Centos:8 golang to version 0:1.15.14-2.module+el8.4.0+12542+e3fec473 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream golang package and not the golang package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2021-29923
- https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis
- https://github.com/golang/go/issues/30999
- https://github.com/golang/go/issues/43389
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md
- https://golang.org/pkg/net/#ParseCIDR
- https://go-review.googlesource.com/c/go/+/325829/
- https://access.redhat.com/errata/RHSA-2021:3585
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/
- https://security.gentoo.org/glsa/202208-02
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/