Vulnerability-Lookup

RHSA-2024:9430

Vulnerability from csaf_redhat - Published: 2024-11-12 09:32 - Updated: 2026-03-18 02:45

Summary

Red Hat Security Advisory: nano security update

Severity

Low

Notes

Topic: An update for nano is now available for Red Hat Enterprise Linux 9. 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 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.

CVE-2024-5742

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.

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2024:9430

References

URL

Category

	https://access.redhat.com/errata/RHSA-2024:9430	self
	https://docs.redhat.com/en/documentation/red_hat_…	external
	https://access.redhat.com/security/updates/classi…	external
	https://bugzilla.redhat.com/show_bug.cgi?id=2278574	external
	https://security.access.redhat.com/data/csaf/v2/a…	self
	https://access.redhat.com/security/cve/CVE-2024-5742	self
	https://bugzilla.redhat.com/show_bug.cgi?id=2278574	external
	https://www.cve.org/CVERecord?id=CVE-2024-5742	external
	https://nvd.nist.gov/vuln/detail/CVE-2024-5742	external

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      "cwe": {
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        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
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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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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-5742"
        },
        {
          "category": "external",
          "summary": "RHBZ#2278574",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278574"
        },
        {
          "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": "2024-11-12T09:32:26+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-9.5.0.GA:nano-debugsource-0:5.6.1-6.el9.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:9430"
        }
      ],
      "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": [
            "BaseOS-9.5.0.GA:nano-0:5.6.1-6.el9.aarch64",
            "BaseOS-9.5.0.GA:nano-0:5.6.1-6.el9.ppc64le",
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          ]
        }
      ],
      "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"
    }
  ]
}

CVE-2024-5742 (GCVE-0-2024-5742)

Vulnerability from cvelistv5 – Published: 2024-06-12 08:53 – Updated: 2025-11-21 07:02

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

Summary

Severity ?

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/errata/RHSA-2024:6986	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2024:9430	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/security/cve/CVE-2024-5742	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2278574	issue-trackingx_refsource_REDHAT

Impacted products

Vendor

Product

Version

Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:2.9.8-3.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.6.1-6.el9 , < * (rpm) cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Date Public ?

2024-04-28 00:00

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 observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2024:9430

CVE-2024-5742 (GCVE-0-2024-5742)

Tags

Sightings

Nomenclature