CVE-2026-11793 — 389-ds-base: 389-ds-base: stack buffer overflow in checkprefix() algorithm id parsing
A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer withou…
Published: 2026-06-09 · CVSS: 4.9 · CVSS 3.1
A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7