CVE-2026-4438

MEDIUM

5.4

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.4

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Vetor de ataqueADJACENT_NETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/20/2026

Ultima modificacao4/7/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

gnu:glibc

Fraquezas (CWE)

CWE-20CWE-88

Referencias

https://sourceware.org/bugzilla/show_bug.cgi?id=34015(3ff69d7a-14f2-4f67-a097-88dee7810d18)

Correlacoes IOC

Sem correlacoes registradas

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