Bug 2494773 - CVE-2026-11786 389-ds-base: 389-ds-base: heap out-of-bounds read in LDIF parser str2entry_state_information_from_type() [fedora-all]
Summary: CVE-2026-11786 389-ds-base: 389-ds-base: heap out-of-bounds read in LDIF pars...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: 389-ds-base
Version: 45
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: mreynolds
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["908b285d-1a0d-4595-944b-e...
Depends On:
Blocks: CVE-2026-11786
TreeView+ depends on / blocked
 
Reported: 2026-06-30 07:27 UTC by Samuele Negrini
Modified: 2026-08-17 15:06 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:
fedora-admin-xmlrpc: mirror+


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Description Samuele Negrini 2026-06-30 07:27:26 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A heap out-of-bounds read exists in str2entry_state_information_from_type() (entry.c) in the 389 Directory Server LDIF parser. When importing LDIF with attribute types containing trailing semicolons, the code accesses p[3] through p[6] after finding a semicolon via PL_strchr without verifying sufficient bytes remain in the allocation.

Requires local administrator access via ldif2db import. ASan-proven on instrumented builds; production binaries do not crash due to allocator padding. Present unchanged across all shipped 389-ds-base versions.

Comment 1 Aoife Moloney 2026-08-17 15:06:31 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


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