CVE-2026-4438: falha de média gravidade em The GNU C Library glibc
gethostbyaddr and gethostbyaddr_r return invalid DNS hostnames
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ssvc Trackcvss 5.4epss 0.3%
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 result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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The GNU C Library · glibcCVEs relacionadas — The GNU C Library glibc
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