SB2019051510 - OpenSUSE Linux update for 389-ds
Published: May 15, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Stack-based buffer overflow (CVE-ID: CVE-2017-15134)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to improper handling of Lightweight Directory Access Protocol (LDAP) search filters by the 389-ds-base package. A remote attacker can send a specially crafted LDAP request, trigger a stack-based buffer overflow condition and cause the ns-slapd process to crash.
Successful exploitation of the vulnerability results in denial of service.
2) Improper authentication (CVE-ID: CVE-2017-15135)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote unauthenticated attacker to bypass authentication on the target system.
The weakness exists due to improper handling of internal hash comparison operations. A remote attacker can bypass the authentication process.
3) Race condition (CVE-ID: CVE-2018-10850)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to a race condition in the way 389-ds-base handles persistent search. A remote attacker can send a specially crafted request that submits malicious input and cause the system to crash.
4) Improper input validation (CVE-ID: CVE-2018-10935)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The vulnerability exists due to improper processing of Lightweight Directory Access Protocol (LDAP) queries. A remote attacker can send execute the ldapsearch command with server-side sorting controls and cause the LDAP server to crash, resulting in a DoS condition.
5) Improper input validation (CVE-ID: CVE-2018-14624)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to incorrect use of the lock controlling error log when re-opening the log file in log__error_emergency(. A remote attacker can send a flood of modifications to a very large DN and cause the slapd to crash.
Remediation
Install update from vendor's website.