SB2018103013 - Red Hat update for zziplib
Published: October 30, 2018
Security Bulletin ID
SB2018103013
Severity
Low
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2018-7725)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the zzip_disk_fread function due to boundary error. A local attacker can send a specially crafted input, trigger invalid memory address dereference condition and cause the service to crash.
2) Memory corruption (CVE-ID: CVE-2018-7726)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the __zzip_parse_root_directory function due to boundary error. A local attacker can supply a specially crafted .zip file to be processed, trigger a bus error and cause the service to crash.
3) Memory corruption (CVE-ID: CVE-2018-7727)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists in the zzip_mem_disk_new function due to boundary error. A local attacker can send a specially crafted input, trigger memory leaks and cause the service to crash.
Remediation
Install update from vendor's website.