Improper Input Validation The advisory has been revoked - it doesn't affect any version of package golang-src Open this link in a new tab
Threat Intelligence
EPSS
0.23% (62nd
percentile)
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Test your applications- Snyk ID SNYK-RHEL7-GOLANGSRC-4426254
- published 17 Aug 2021
- disclosed 22 Mar 2021
Introduced: 22 Mar 2021
CVE-2021-29923 Open this link in a new tabAmendment
The Red Hat security team deemed this advisory irrelevant for RHEL:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream golang-src package and not the golang-src package as distributed by RHEL.
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://www.oracle.com/security-alerts/cpujan2022.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/
- https://security.gentoo.org/glsa/202208-02
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/