rhsa-2024_6986
Vulnerability from csaf_redhat
Published
2024-09-24 01:24
Modified
2024-11-12 17:22
Summary
Red Hat Security Advisory: nano security update

Notes

Topic
An update for nano is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. 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
GNU nano is a small and friendly text editor. Security Fix(es): * nano: running `chmod` and `chown` on the filename allows malicious user to replace the emergency file with a malicious symlink to a root-owned file (CVE-2024-5742) 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.
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-2024-5742",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "discovery_date": "2024-05-02T00:00:00+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2278574"
        }
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      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in GNU Nano that allows a possible privilege escalation through an insecure temporary file. If Nano is killed while editing, a file it saves to an emergency file with the permissions of the running user provides a window of opportunity for attackers to escalate privileges through a malicious symlink.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "nano: running `chmod` and `chown` on the filename allows malicious user to replace the emergency file with a malicious symlink to a root-owned file",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "For an attack to be successful, an attacker must be able to kill the Nano session of another user, hence this issue was rated as a Low severity issue.",
          "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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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-5742",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-5742"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-5742",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5742"
        }
      ],
      "release_date": "2024-04-28T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-09-24T01:24:42+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",
          "product_ids": [
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            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.ppc64le",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.s390x",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.src",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.x86_64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.aarch64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.ppc64le",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.s390x",
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            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.ppc64le",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.s390x",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:6986"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.src",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-0:2.9.8-3.el8_10.x86_64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.aarch64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.ppc64le",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.s390x",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debuginfo-0:2.9.8-3.el8_10.x86_64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.aarch64",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.ppc64le",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.s390x",
            "BaseOS-8.10.0.Z.MAIN.EUS:nano-debugsource-0:2.9.8-3.el8_10.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "nano: running `chmod` and `chown` on the filename allows malicious user to replace the emergency file with a malicious symlink to a root-owned file"
    }
  ]
}


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