Yüksek CVSS 7.6

CVE-2026-11774: CVE-2026-11774: tamsayı taşması

Yayın: 11 Haziran 2026 22:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), adding sizeof(uint32_t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap buffer overflow of up to approximately 2 megabytes of attacker-controlled data. After a successful SASL bind with integrity protection (SSF > 0), a remote attacker can cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, enrolled host, or service account can trigger this vulnerability over the network. This flaw is independent of CVE-2025-14905, which patched schema.c only and did not modify sasl_io.c.

Özet bilgiler

CVSS v3.1: 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
EPSS: %0,68 (yüzdelik 53)
CWE: CWE-190
Yama: Yok / bilinmiyor

Kaynaklar

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