5.9
CVE-2026-18663
- EPSS 0.4%
- Veröffentlicht 12.08.2026 09:35:26
- Zuletzt bearbeitet 14.08.2026 19:07:46
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389-ds-base: 389-ds-base: pre-authentication double-free in get_ldapmessage_controls_ext() via critical session tracking control
A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function frees the parsed controls array on the Session Tracking critical-control rejection path without clearing the SLAPI_REQCONTROLS pblock slot. Operation teardown then frees the same pointer again, causing a double-free. An unauthenticated remote attacker can trigger this with a single BIND request carrying a critical Session Tracking control, resulting in heap corruption and potential denial of service.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt
Red Hat Directory Server 11
Default Statusunaffected
HerstellerRed Hat
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Produkt
Red Hat Directory Server 12
Default Statusunaffected
HerstellerRed Hat
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Produkt
Red Hat Directory Server 13
Default Statusaffected
HerstellerRed Hat
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Produkt
Red Hat Enterprise Linux 10
Default Statusaffected
HerstellerRed Hat
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Produkt
Red Hat Enterprise Linux 6
Default Statusunaffected
HerstellerRed Hat
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Produkt
Red Hat Enterprise Linux 7
Default Statusunaffected
HerstellerRed Hat
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Produkt
Red Hat Enterprise Linux 8
Default Statusunaffected
HerstellerRed Hat
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Produkt
Red Hat Enterprise Linux 9
Default Statusunaffected
VulnDex Vulnerability Enrichment
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.4% | 0.327 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| RedHat | 5.9 | 2.2 | 3.6 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-415 Double Free
The product calls free() twice on the same memory address.
https://access.redhat.com/security/cve/CVE-2026-18663
https://bugzilla.redhat.com/show_bug.cgi?id=2510631