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AUSCERT External Security Bulletin Redistribution
389-ds-base security update
16 July 2018
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 8
Impact/Access: Denial of Service -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
CVE Names: CVE-2018-10850 CVE-2018-1089 CVE-2018-1054
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Package : 389-ds-base
Version : 126.96.36.199-4+deb8u1
CVE ID : CVE-2015-1854 CVE-2017-15134 CVE-2018-1054 CVE-2018-1089
A flaw was found while doing authorization of modrdn operations.
An unauthenticated attacker able to issue an ldapmodrdn call to
the directory server could perform unauthorized modifications
of entries in the directory server.
Improper handling of a search filter in slapi_filter_sprintf()
in slapd/util.c can lead to remote server crash and denial
When read access on <attribute_name> is enabled, a flaw in
SetUnicodeStringFromUTF_8 function in collate.c, can lead to
out-of-bounds memory operations.
This might result in a server crash, caused by unauthorized
Any user (anonymous or authenticated) can crash ns-slapd with a
crafted ldapsearch query with very long filter value.
Due to a race condition the server could crash in turbo mode
(because of high traffic) or when a worker reads several requests
in the read buffer (more_data). Thus an anonymous attacker could
trigger a denial of service.
For Debian 8 "Jessie", these problems have been fixed in version
We recommend that you upgrade your 389-ds-base packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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