SB2018011025 - Remote code execution in 7-zip
Published: January 10, 2018
Security Bulletin ID
SB2018011025
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper check or handling of exceptional conditions (CVE-ID: CVE-2018-5996)
CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists in the method NCompress::NRar3::CDecoder::Code due to insufficient exception handling. A remote attacker can trickt eh victim into opening a specially crafted RAR file, trigger multiple memory corruptions within the PPMd code and cause the service to crash or execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.