SB2015070805 - Ubuntu update for libwmf
Published: July 8, 2015
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: CVE-2015-0848)
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists due to heap-based buffer overflow. A remote attacker can trick the victim into opening a specially crafted BMP image, trigger memory corruption and cause the service to crash or execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
2) Heap-based buffer overflow (CVE-ID: CVE-2015-4588)
The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists in the DecodeImage function due to heap-based buffer overflow. A remote attacker can trick the victim into opening a specially crafted "run-length count" in an image in a WMF file, trigger memory corruption and cause the service to crash or execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
3) Out-of-bounds read (CVE-ID: CVE-2015-4695)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the DecodeImage function due to out-of-bounds read. A remote attacker can trigger memory corruption and cause the service to crash via a specially crafted WMF file.
4) Use-after-free error (CVE-ID: CVE-2015-4696)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to use-after-free error. A remote attacker can trick the victim into opening a specially crafted WMF file to the (1) wmf2gd or (2) wmf2eps command, trigger memory corruption and cause the service to crash.
Remediation
Install update from vendor's website.