AZL-80279
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80279.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-80279
- Upstream
- Published
- 2026-03-20T20:16:49Z
- Modified
- 2026-09-20T05:33:47Z
- Summary
- CVE-2026-4437 affecting package glibc for versions less than 2.38-19
- Details
-
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C Library version 2.34 to version 2.43 could, with a crafted response from the configured DNS server, result in a violation of the DNS specification that causes the application to treat a non-answer section of the DNS response as a valid answer.
- References