CVE-2026-15722
CVE-2026-15722 · 389-ds-base: 389-ds-base: pre-authentication stack buffer overflow in get_ruvelement_from_berval() via unbounded replica id parsing
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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 7.5 · High · EPSS 0.8%
- Published
- Updated
Stack: system
Affected products and versions
red hat directory server 11.5 e4s for rhel 8
- Versions
- ≥ 8060020260908152739.0ca98e7e: Not affected (rpm)
No fix published
red hat directory server 11.7 e4s for rhel 8
- Versions
- ≥ 8080020260806114250.f969626e: Not affected (rpm)
No fix published
red hat directory server 11.9 for rhel 8
- Versions
- ≥ 8100020260803140625.37ed7c03: Not affected (rpm)
No fix published
red hat directory server 12.2 e4s for rhel 9
- Versions
- ≥ 9020020260730155601.1674d574: Not affected (rpm)
No fix published
red hat directory server 12.4 e4s for rhel 9
- Versions
- ≥ 9040020260810131422.1674d574: Not affected (rpm)
No fix published
red hat enterprise linux 10
- Versions
- ≥ 0:3.2.0-9.el10_2: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:3.0.6-20.el10_0: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:1.3.11.1-14.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 8100020260806150504.25e700aa: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
- Versions
- ≥ 8040020260803141511.96015a92: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
- Versions
- ≥ 8040020260803141511.96015a92: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 8060020260806120442.824efc52: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
- Versions
- ≥ 8060020260806120442.824efc52: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 8080020260806114228.6dbb3803: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 8080020260806114228.6dbb3803: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:2.8.0-9.el9_8: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:2.2.4-20.el9_2: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
- Versions
- ≥ 0:2.4.5-27.el9_4: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:2.6.1-23.el9_6: Not affected (rpm)
No fix published
red hat directory server 12
No fix published
red hat directory server 13
No fix published
red hat enterprise linux 6
No fix published
389-ds-base Debian:12
- Versions
- 2.3.1+dfsg1-1
- 2.3.1+dfsg1-1+deb12u1
- 2.3.4+dfsg1-1
- 2.3.4+dfsg1-1.1
- 2.4.4+dfsg1-1
- 2.4.4+dfsg1-3
- 2.4.5+dfsg1-1
- 3.0.2+dfsg1-1
- 3.1.1+dfsg1-1
- 3.1.1+dfsg1-2
- 3.1.1+dfsg1-3
- 3.1.2+dfsg1-1
- 3.1.2+vendor1-1
- 3.1.2+vendor1-2
- 3.3.0-1
- 3.3.0-2
- 3.3.1-1
- 3.3.1-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
389-ds-base Debian:13
- Versions
- 3.1.2+dfsg1-1
- 3.1.2+dfsg1-1+deb13u1
- 3.1.2+vendor1-1
- 3.1.2+vendor1-2
- 3.3.0-1
- 3.3.0-2
- 3.3.1-1
- 3.3.1-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://access.redhat.com/errata/RHSA-2026:55421
- https://access.redhat.com/errata/RHSA-2026:55422
- https://access.redhat.com/errata/RHSA-2026:55423
- https://access.redhat.com/errata/RHSA-2026:55424
- https://access.redhat.com/errata/RHSA-2026:55425
- https://access.redhat.com/errata/RHSA-2026:55426
- https://access.redhat.com/errata/RHSA-2026:55530
- https://access.redhat.com/errata/RHSA-2026:55532
- https://access.redhat.com/errata/RHSA-2026:55756
- https://access.redhat.com/errata/RHSA-2026:55757
- https://access.redhat.com/errata/RHSA-2026:55758
- https://access.redhat.com/errata/RHSA-2026:55794
- https://access.redhat.com/errata/RHSA-2026:56047
- https://access.redhat.com/errata/RHSA-2026:56048
- https://access.redhat.com/errata/RHSA-2026:56050
- https://access.redhat.com/errata/RHSA-2026:79217
- https://access.redhat.com/security/cve/CVE-2026-15722
- https://bugzilla.redhat.com/show_bug.cgi?id=2499961
- https://nvd.nist.gov/vuln/detail/CVE-2026-15722