Source: 389-ds-base Version: 3.1.2+vendor1-2 Severity: grave Tags: security upstream Justification: user security hole X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for 389-ds-base. CVE-2026-9064[0]: | A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() | function in the LDAP server does not enforce an upper bound on the | number of controls per LDAP message. A remote, unauthenticated | attacker can send a specially crafted LDAP request containing | hundreds of thousands of minimal controls within the default maximum | BER message size (2 MB), causing excessive CPU consumption and heap | allocation on the server. Under concurrent exploitation, this leads | to significant latency degradation, worker thread starvation, or | out-of-memory termination, resulting in a denial of service. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-9064 https://www.cve.org/CVERecord?id=CVE-2026-9064 [1] https://github.com/389ds/389-ds-base/issues/7503 [2] https://github.com/389ds/389-ds-base/commit/7e9647f5bb5c47602f4cdf0022cf6bd22872d3ef Please adjust the affected versions in the BTS as needed. Regards, Salvatore
