CVE-2021-29923

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

PublishedAug 7, 2021

First seenAug 7, 2021

How to fix

Update

golang go1.17 or later
oracle timesten_in-memory_database21.1.1.1.0 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/
security.gentoo.org/glsa/202208-02

Affected products

Product	Affected versions	Fixed in
golang go	v < 1.17	1.17
oracle timesten_in-memory_database	v < 21.1.1.1.0	21.1.1.1.0
fedoraproject fedora	36	—

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