CVE-2026-0915
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2026-01-15
Last updated on: 2026-01-20
Assigner: GNU C Library
Description
Description
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.
CVSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gnu | glibc | From 2.0 (inc) to 2.42 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-908 | The product uses or accesses a resource that has not been initialized. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability occurs when the functions getnetbyaddr or getnetbyaddr_r are called with a configured nsswitch.conf that uses the DNS backend for networks. If a query is made for a zero-valued network in GNU C Library versions 2.0 to 2.42, it can cause stack contents to be leaked to the DNS resolver.
How can this vulnerability impact me? :
The vulnerability can lead to unintended disclosure of stack memory contents to an external DNS resolver, potentially exposing sensitive information from the process memory.
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