SB2018040503 - Arch Linux update for zziplib
Published: April 5, 2018
Security Bulletin ID
SB2018040503
Severity
Low
Patch available
YES
Number of vulnerabilities
6
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2018-6381)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the zzip_disk_fread function in zzip/mmapped.c due to the size variable is not validated against the amount of file->stored data. A remote attacker can trigger memory corruption and cause the service to crash.
2) Memory corruption (CVE-ID: CVE-2018-6484)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the __zzip_fetch_disk_trailer function of zzip/zip.c due to memory alignment error and bus error. A remote attacker can submit a specially crafted zip file, trigger memory corruption and cause the service to crash.
3) Memory corruption (CVE-ID: CVE-2018-6540)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the zzip_disk_findfirst function of zzip/mmapped.c due to bus error caused by loading of a misaligned address. A remote attacker can submit a specially crafted zip file, trigger memory corruption and cause the service to crash.
4) Memory corruption (CVE-ID: CVE-2018-6541)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in __zzip_fetch_disk_trailer in zzip/zip.c due to bus error caused by loading of a misaligned address when handling disk64_trailer local entries. A remote attacker can submit a specially crafted zip file, trigger memory corruption and cause the service to crash.
5) Memory corruption (CVE-ID: CVE-2018-6542)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the zzip_disk_findfirst function of zzip/mmapped.c due to bus error when handling a disk64_trailer seek value caused by loading of a misaligned address. A remote attacker can trigger memory corruption and cause the service to crash.
6) Memory corruption (CVE-ID: CVE-2018-6869)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the __zzip_parse_root_directory function of zzip/zip.c due to uncontrolled memory allocation. A remote attacker can trick the victim into opening a specially crafted zip file, trigger memory corruption and cause the application to crash.
Remediation
Install update from vendor's website.