CVE-2021-29923

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/golang/go/issues/43389	Issue Tracking Third Party Advisory
https://github.com/golang/go/issues/30999	Exploit Issue Tracking Third Party Advisory
https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis	Third Party Advisory
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md	Exploit Third Party Advisory
https://golang.org/pkg/net/#ParseCIDR	Vendor Advisory
https://go-review.googlesource.com/c/go/+/325829/	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202208-02	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:oracle:timesten_in-memory_database:*:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

Information

Published : 2021-08-07 10:15

Updated : 2022-09-14 14:11

NVD link : CVE-2021-29923

Mitre link : CVE-2021-29923

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

golang

go

fedoraproject

fedora

oracle

timesten_in-memory_database

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