Skip to content
fr Sign in
7.5 High

CVE-2026-15722 389-ds-base: 389-ds-base: pre-authentication stack buffer overflow in get_ruvelement_from_berval() via unbounded replica id parsing

Description

A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to denial of service.

CVSS 3.1 detail

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Directory Server 11 Versions not published
Red Hat Directory Server 12 Versions not published
Red Hat Directory Server 13 Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 8100020260806150504.25 earliest → < 8100020260806150504.25e700aa 8100020260806150504.25e700aa
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Show the 15 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat Directory Server 11.9 for RHEL 8 8100020260803140625.37 earliest → < 8100020260803140625.37ed7c03 8100020260803140625.37ed7c03
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 8040020260803141511.96015 earliest → < 8040020260803141511.96015a92 8040020260803141511.96015a92
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 8040020260803141511.96015 earliest → < 8040020260803141511.96015a92 8040020260803141511.96015a92
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 8060020260806120442.824 earliest → < 8060020260806120442.824efc52 8060020260806120442.824efc52
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 8060020260806120442.824 earliest → < 8060020260806120442.824efc52 8060020260806120442.824efc52
Red Hat Enterprise Linux 8.8 Telecommunications Update Service 8080020260806114228.6 earliest → < 8080020260806114228.6dbb3803 8080020260806114228.6dbb3803
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 8080020260806114228.6 earliest → < 8080020260806114228.6dbb3803 8080020260806114228.6dbb3803
Red Hat Directory Server 12.2 E4S for RHEL 9 9020020260730155601.1674 earliest → < 9020020260730155601.1674d574 9020020260730155601.1674d574
Red Hat Directory Server 11.7 E4S for RHEL 8 8080020260806114250 earliest → < 8080020260806114250.f969626e 8080020260806114250.f969626e
Red Hat Directory Server 12.4 E4S for RHEL 9 9040020260810131422.1674 earliest → < 9040020260810131422.1674d574 9040020260810131422.1674d574
Red Hat Directory Server 11.5 E4S for RHEL 8 8060020260908152739.0 earliest → < 8060020260908152739.0ca98e7e 8060020260908152739.0ca98e7e

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Red Hat Directory Server 11

The 42 CVEs of Red Hat Directory Server 11 →
CVE-2026-117548 389-ds-base: 389-ds-base: null pointer dereference via modifydn using an attribute's schema alias name causes denial of service 6.5 Medium CVE-2026-86345 389-ds-base: 389-ds-base: starttls plaintext-buffer retention allows on-path attacker to forge an ldap client's authentication result 9.0 Critical CVE-2026-86344 389-ds-base: 389-ds-base: unauthenticated worker-thread-pool exhaustion via completed-operation-then-incomplete-pdu connection requeue 7.5 High CVE-2026-19843 389-ds-base: 389-ds-base: command injection via unescaped ldap dn in cockpit 389 console ldap editor 8.4 High
Track this CVE