github - ghsa-59w5-j22f-h3rv

GHSA-59W5-J22F-H3RV

Vulnerability from github – Published: 2025-07-04 06:30 – Updated: 2025-11-24 21:30

Details

A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success—the function may mistakenly return a success status even when key derivation fails. This results in uninitialized cryptographic key buffers being used in subsequent communication, potentially compromising SSH sessions' confidentiality, integrity, and availability.

Severity ?

5.0 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-5372"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-682"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-04T06:15:24Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in libssh versions built with OpenSSL versions older than 3.0, specifically in the ssh_kdf() function responsible for key derivation. Due to inconsistent interpretation of return values where OpenSSL uses 0 to indicate failure and libssh uses 0 for success\u2014the function may mistakenly return a success status even when key derivation fails. This results in uninitialized cryptographic key buffers being used in subsequent communication, potentially compromising SSH sessions\u0027 confidentiality, integrity, and availability.",
  "id": "GHSA-59w5-j22f-h3rv",
  "modified": "2025-11-24T21:30:55Z",
  "published": "2025-07-04T06:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5372"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:21977"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-5372"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369388"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-5372 (GCVE-0-2025-5372)

Vulnerability from cvelistv5 – Published: 2025-07-04 06:01 – Updated: 2025-11-24 21:03

Summary

Severity ?

5 (Medium)


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

CWE

CWE-682 - Incorrect Calculation

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/errata/RHSA-2025:21977	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/security/cve/CVE-2025-5372	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2369388	issue-trackingx_refsource_REDHAT

Impacted products

Vendor

Product

Version

Red Hat

Red Hat Enterprise Linux 8

Unaffected: 0:0.9.6-16.el8_10 , < * (rpm)
cpe:/o:redhat:enterprise_linux:8::baseos
cpe:/a:redhat:enterprise_linux:8::appstream

Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:0.9.6-16.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::appstream
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
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

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          "time": "2025-06-24T00:00:00+00:00",
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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

GHSA-59W5-J22F-H3RV

CVE-2025-5372 (GCVE-0-2025-5372)

Tags

Sightings

Nomenclature