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7.5Hoch

CVE-2026-112322Krb5: mit krb5 kadmind unauthenticated cpu dos via auth_gssapi client states cleanup

Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.2 Extended Update Support; Red Hat Red Hat Enterprise Linux 9; Red Hat Red Hat Enterpr… Veröffentlicht: (vor 4 Tagen)

Beschreibung

clean_client() in lib/rpc/svc_auth_gssapi.c in MIT Kerberos 5 (aka krb5) restarts its scan from the head of the client list after each removal, resulting in quadratic CPU cost. Remote attackers can cause a denial of service (CPU consumption in kadmind) by accumulating a large number of AUTH_GSSAPI client entries.

Schwachstellentyp (CWE): CWE-770

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
enterprise linux 9 —
Red Hat Red Hat Enterprise Linux 10 all versions
Red Hat Red Hat Enterprise Linux 10.2 Extended Update Support all versions
Red Hat Red Hat Enterprise Linux 6 —
Red Hat Red Hat Enterprise Linux 7 all versions
Red Hat Red Hat Enterprise Linux 8 all versions
Red Hat Red Hat Enterprise Linux 9 all versions
Red Hat Red Hat Enterprise Linux 9.8 Extended Update Support all versions
Red Hat Red Hat Hardened Images all versions
rhel eus 9.8 —

Referenzen und Patches

Neue CVEs im selben Produkt — Red Hat Enterprise Linux

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A flaw was found in abrt. abrt-server trusts a client-supplied PID when creating problem dumps over abrt.socket and, running as root, copies that process's /proc data (including environ) into a dump directory owned by the connecting unprivileged user. This al…

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Abrt: abrt: incomplete cve-2026-54228/54229 fix — completeness gate bypassed via attacker-supplied count element

Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Enterprise Linux 7; Red Hat Red Hat Enterprise Linux 8

A flaw was found in abrt. The completeness check introduced to mitigate CVE-2026-54228 and CVE-2026-54229 only verifies that a dump directory contains a "count" element, which an unprivileged user can create. This allows a local attacker to bypass the guard a…