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Scientific Linux Security Update : ipa and slapi-nis on SL7.x x86_64 (20150326)
high Nessus Plugin ID 82293
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
The ipa component provides centrally managed Identity, Policy, and Audit. The slapi-nis component provides NIS Server and Schema Compatibility plug- ins for Directory Server.It was discovered that the IPA extdom Directory Server plug-in did not correctly perform memory reallocation when handling user account information. A request for a list of groups for a user that belongs to a large number of groups would cause a Directory Server to crash.
(CVE-2015-1827)
It was discovered that the slapi-nis Directory Server plug-in did not correctly perform memory reallocation when handling user account information. A request for information about a group with many members, or a request for a user that belongs to a large number of groups, would cause a Directory Server to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2015-0283)
This update fixes the following bugs :
- Previously, users of IdM were not properly granted the default permission to read the 'facsimiletelephonenumber' user attribute. This update adds 'facsimiletelephonenumber' to the Access Control Instruction (ACI) for user data, which makes the attribute readable to authenticated users as expected.
- Prior to this update, when a DNS zone was saved in an LDAP database without a dot character (.) at the end, internal DNS commands and operations, such as dnsrecord-* or dnszone-*, failed. With this update, DNS commands always supply the DNS zone with a dot character at the end, which prevents the described problem.
- After a full-server IdM restore operation, the restored server in some cases contained invalid data. In addition, if the restored server was used to reinitialize a replica, the replica then contained invalid data as well. To fix this problem, the IdM API is now created correctly during the restore operation, and *.ldif files are not skipped during the removal of RUV data. As a result, the restored server and its replica no longer contain invalid data.
- Previously, a deadlock in some cases occurred during an IdM upgrade, which could cause the IdM server to become unresponsive. With this update, the Schema Compatibility plug-in has been adjusted not to parse the subtree that contains the configuration of the DNA plug-in, which prevents this deadlock from triggering.
- When using the extdom plug-in of IdM to handle large groups, user lookups and group lookups previously failed due to insufficient buffer size. With this update, the getgrgid_r() call gradually increases the buffer length if needed, and the described failure of extdom thus no longer occurs.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 82293
File Name: sl_20150326_ipa_and_slapi_nis_on_SL7_x.nasl
Version: 1.6
Type: local
Agent: unix
Published: 3/27/2015
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: p-cpe:/a:fermilab:scientific_linux:ipa-admintools, p-cpe:/a:fermilab:scientific_linux:ipa-client, p-cpe:/a:fermilab:scientific_linux:ipa-debuginfo, p-cpe:/a:fermilab:scientific_linux:ipa-python, p-cpe:/a:fermilab:scientific_linux:ipa-server, p-cpe:/a:fermilab:scientific_linux:ipa-server-trust-ad, p-cpe:/a:fermilab:scientific_linux:slapi-nis, p-cpe:/a:fermilab:scientific_linux:slapi-nis-debuginfo, x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/RedHat/rpm-list, Host/local_checks_enabled, Host/cpu, Host/RedHat/release
Patch Publication Date: 3/26/2015
Vulnerability Publication Date: 3/30/2015
Reference Information
CVE: CVE-2015-0283, CVE-2015-1827