Vulnerability-Lookup

GHSA-XP56-6525-9CHF

Vulnerability from github – Published: 2026-01-16 00:30 – Updated: 2026-01-16 18:31

Details

Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-0915"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-15T22:16:12Z",
    "severity": null
  },
  "details": "Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library\u0027s DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.",
  "id": "GHSA-xp56-6525-9chf",
  "modified": "2026-01-16T18:31:28Z",
  "published": "2026-01-16T00:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0915"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33802"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-0915 (GCVE-0-2026-0915)

Vulnerability from cvelistv5 – Published: 2026-01-15 22:08 – Updated: 2026-01-16 17:06

Title

getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler

Summary

Severity ?

No CVSS data available.

CWE

CWE-908 - Use of Uninitialized Resource

Assigner

glibc

References

URL

Tags

https://sourceware.org/bugzilla/show_bug.cgi?id=33802

Impacted products

	Vendor	Product	Version
	The GNU C Library	glibc	Affected: 2.0 , ≤ 2.42 (custom)

Credits

Igor Morgenstern, Aisle Research

Show details on NVD website

JSON

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    "cna": {
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      "impacts": [
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    "datePublished": "2026-01-15T22:08:41.630Z",
    "dateReserved": "2026-01-13T19:02:42.388Z",
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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-XP56-6525-9CHF

CVE-2026-0915 (GCVE-0-2026-0915)

Tags

Sightings

Nomenclature