DEBIAN-CVE-2026-11774
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-11774
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-11774.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-11774
- Upstream
- Published
- 2026-06-11T19:16:37Z
- Modified
- 2026-09-14T17:01:30Z
- Severity
-
- 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / 389-ds-base
Package
- Name
- 389-ds-base
- Purl
- pkg:deb/debian/389-ds-base?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / 389-ds-base
Package
- Name
- 389-ds-base
- Purl
- pkg:deb/debian/389-ds-base?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected