rhsa-2024_2239
Vulnerability from csaf_redhat
Published
2024-04-30 10:14
Modified
2024-11-24 20:58
Summary
Red Hat Security Advisory: skopeo security update

Notes

Topic
An update for skopeo is now available for Red Hat Enterprise Linux 9. 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
The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files. Security Fix(es): * golang: crypto/tls: Timing Side Channel attack in RSA based TLS key exchanges. (CVE-2023-45287) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.
Terms of Use
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.


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  "vulnerabilities": [
    {
      "cve": "CVE-2023-45287",
      "cwe": {
        "id": "CWE-208",
        "name": "Observable Timing Discrepancy"
      },
      "discovery_date": "2023-12-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2253193"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Golang crypto/tls standard library. In previous versions, the package was vulnerable to a Timing Side Channel attack by observing the time it took for RSA-based TLS key exchanges, which was not constant. This flaw allows a malicious user to gather information from the environment.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang: crypto/tls: Timing Side Channel attack in RSA based TLS key exchanges.",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The identified flaw in the Golang crypto/tls library, is assessed as a moderate severity issue rather than important due to several mitigating factors. Although the vulnerability exposes a Timing Side Channel, potentially allowing information retrieval through RSA-based TLS key exchanges, its exploitation demands significant access and expertise. Additionally, while earlier versions implemented RSA blinding to counter timing attacks, the removal of PKCS#1 padding may still leak timing data. However, the practicality of exploiting this flaw is limited, and the transition to a fully constant time RSA implementation in Go 1.20 significantly bolsters security, reducing the risk posed by timing side channels.",
          "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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          "url": "https://access.redhat.com/security/cve/CVE-2023-45287"
        },
        {
          "category": "external",
          "summary": "RHBZ#2253193",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253193"
        },
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-45287",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-45287"
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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-45287",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45287"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2023-2375",
          "url": "https://pkg.go.dev/vuln/GO-2023-2375"
        }
      ],
      "release_date": "2023-12-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-04-30T10:14:46+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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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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        }
      ],
      "title": "golang: crypto/tls: Timing Side Channel attack in RSA based TLS key exchanges."
    }
  ]
}


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