Vulnerability-Lookup

GHSA-HQWP-QWFV-MHRX

Vulnerability from github – Published: 2025-06-05 21:30 – Updated: 2025-06-05 21:30

Details

The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.

Severity

5.6 (Medium)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-5702"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-665"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-05T19:15:31Z",
    "severity": "MODERATE"
  },
  "details": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.",
  "id": "GHSA-hqwp-qwfv-mhrx",
  "modified": "2025-06-05T21:30:55Z",
  "published": "2025-06-05T21:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5702"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33056"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-5702 (GCVE-0-2025-5702)

Vulnerability from cvelistv5 – Published: 2025-06-05 18:23 – Updated: 2025-06-05 20:21

Summary

Severity

5.6 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-05 20:17 UTC

CWE

CWE-665 - Improper Initialization

Assigner

glibc CNA under the redhat root

CNA scorecard C 74/100 over 16 records in the last 180 days details

References

1 reference

URL	Tags
https://sourceware.org/bugzilla/show_bug.cgi?id=33056

Impacted products

1 product

Vendor	Product	Version
The GNU C Library	glibc	Affected: 2.39 (custom)

Date Public

2025-06-05 02:03

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 5.6,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-5702",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-05T20:17:18.849567Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-665",
                "description": "CWE-665 Improper Initialization",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-05T20:21:44.764Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Power10"
          ],
          "product": "glibc",
          "vendor": "The GNU C Library",
          "versions": [
            {
              "status": "affected",
              "version": "2.39",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2025-06-05T02:03:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program."
            }
          ],
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-05T18:23:57.872Z",
        "orgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
        "shortName": "glibc"
      },
      "references": [
        {
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33056"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "workarounds": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the \u003ccode\u003eglibc.cpu.hwcaps\u003c/code\u003e tunable. This can be done by exporting the \u003ccode\u003eGLIBC_TUNABLES\u003c/code\u003e environment variable like so:\u003cbr\u003e\u003cbr\u003e\n\n\u003ccode\u003e\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1\u003c/code\u003e"
            }
          ],
          "value": "One may disable the Power10 optimized string routines in glibc to work around this issue, by setting the glibc.cpu.hwcaps tunable. This can be done by exporting the GLIBC_TUNABLES environment variable like so:\n\n\n\n\nexport GLIBC_TUNABLES=glibc.cpu.hwcaps=-arch_3_1"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
    "assignerShortName": "glibc",
    "cveId": "CVE-2025-5702",
    "datePublished": "2025-06-05T18:23:57.872Z",
    "dateReserved": "2025-06-04T21:57:13.818Z",
    "dateUpdated": "2025-06-05T20:21:44.764Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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