CVE-2026-4438

MEDIUM

5.4

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung5.4

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

AngriffsvektorADJACENT_NETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/20/2026

Zuletzt geandert4/7/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

gnu:glibc

Schwachen (CWE)

CWE-20CWE-88

Referenzen

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

IOC Korrelationen

Keine Korrelationen erfasst

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