SB2017092907 - Denial of service in ClamAV XAR
Published: September 29, 2017 Updated: March 16, 2018
Security Bulletin ID
SB2017092907
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2018-1000085)
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.The weakness exists in the xar_hash_check() function due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted XAR file, trick the victim into opening it, trigger out-of-bounds heap memory read and cause the service to crash.
Remediation
Install update from vendor's website.