SB2018081405 - Debian update for samba
Published: August 14, 2018
Security Bulletin ID
SB2018081405
Severity
High
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: CVE-2018-10858)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in libsmbclientwhen processing a list of directory entries, received from the server. A remote attacker can trick the victim to connect to a malicious SMB server, send a long list of directory entries, trigger heap-based buffer overflow and crash the client or execute arbitrary code on the target system.
2) Information disclosure (CVE-ID: CVE-2018-10919)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to missing access control checks when displaying values of confidential attributes. A remote authenticated attacker can use LDAP search expression to obtain both of attributes where the schema SEARCH_FLAG_CONFIDENTIAL (0x80) searchFlags bit and where an explicit Access Control Entry has been specified on the ntSecurityDescriptor.
Remediation
Install update from vendor's website.