csaf_redhat - rhsa-2021

rhsa-2021_3585

Vulnerability from csaf_redhat

Published

2021-09-21 10:07

Modified

2024-12-17 21:51

Summary

Red Hat Security Advisory: go-toolset:rhel8 security update

Notes

Topic

An update for the go-toolset:rhel8 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang. Security Fix(es): * golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet (CVE-2021-29923) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

JSON

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        "name": "Improper Input Validation"
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          "category": "description",
          "text": "A flaw was found in golang. Extraneous zero characters at the beginning of an IP address octet are not properly considered which could allow an attacker to bypass IP-based access controls. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability potentially affects any component written in Go that uses the net standard library and ParseIP / ParseCIDR functions. There are components which might not use these functions or might use them to parse IP addresses and not manage them in any way (only store information about the ip address) . This reduces the severity of this vulnerability to Low for the following offerings:\n* OpenShift distributed tracing (formerly OpenShift Jaeger)\n* OpenShift Migration Toolkit for Containers\n* OpenShift Container Platform",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-29923"
        },
        {
          "category": "external",
          "summary": "RHBZ#1992006",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1992006"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-29923",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-29923"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-29923",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29923"
        },
        {
          "category": "external",
          "summary": "https://sick.codes/sick-2021-016/",
          "url": "https://sick.codes/sick-2021-016/"
        }
      ],
      "release_date": "2021-03-22T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-09-21T10:07:10+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet"
    }
  ]
}

cve-2021-29923

Vulnerability from cvelistv5

Published

2021-08-07 16:38

Modified

2024-08-03 22:18

Severity ?

Summary

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

▼	URL	Tags
	https://golang.org/pkg/net/#ParseCIDR	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
	https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis	x_refsource_MISC
	https://github.com/golang/go/issues/43389	x_refsource_MISC
	https://github.com/golang/go/issues/30999	x_refsource_MISC
	https://go-review.googlesource.com/c/go/+/325829/	x_refsource_MISC
	https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-02	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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