CVE-2021-29923

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-29923
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-07T17:15:07
  • Last Modified Date
  • 2022-09-14T21:11:29
Weakness Enumerations
CWE URL
NVD-CWE-noinfo http://cwe.mitre.org/data/definitions/NVD-noinfo.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* 1 OR 1.17
cpe:2.3:a:oracle:timesten_in-memory_database:*:*:*:*:*:*:*:* 1 OR 21.1.1.1.0
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis Third Party Advisory
https://github.com/golang/go/issues/30999 Exploit Issue Tracking Third Party Advisory
https://github.com/golang/go/issues/43389 Issue Tracking Third Party Advisory
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md Exploit Third Party Advisory
https://go-review.googlesource.com/c/go/+/325829/ Patch Third Party Advisory
https://golang.org/pkg/net/#ParseCIDR Vendor 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
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-29923
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29923
History
Created Old Value New Value Data Type Notes
2022-04-04 00:41:44 Added to TrackCVE
2022-12-05 07:36:54 2021-08-07T17:15Z 2021-08-07T17:15:07 CVE Published Date updated
2022-12-05 07:36:54 2022-09-14T21:11:29 CVE Modified Date updated
2022-12-05 07:36:54 Analyzed Vulnerability Status updated
2022-12-05 07:36:59 References updated