SB2013070902 - Multiple vulnerabilities in Microsoft Windows

Description

This security bulletin contains information about 7 secuirty vulnerabilities.

1) Privilege escalation (CVE-ID: CVE-2013-3173)

The vulnerability allows a local attacker to obtain elevated privileges on the target system.

The weakness exists due to improper handling of objects in memory by the kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

2) Buffer overflow (CVE-ID: CVE-2013-3172)

The vulnerability allows a remote attacker to cause DoS conditions on the target system.

The weakness exists due to buffer overflow when handling of objects in memory by the kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application, trigger memory corruption and cause the system to stop responding.

Successful exploitation of the vulnerability results in denial of service on the vulnerable system.

3) Privilege escalation (CVE-ID: CVE-2013-3167)

The vulnerability allows a local attacker to obtain elevated privileges on the target system.

The weakness exists due to improper handling of objects in memory by the kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

4) Memory corruption (CVE-ID: CVE-2013-3129)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to improper handling of malformed TrueType font files by the kernel-mode driver (win32k.sys). A remote attacker can create a specially crafted TrueType font file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

5) Privilege escalation (CVE-ID: CVE-2013-1300)

The vulnerability allows a local attacker to obtain elevated privileges on the target system.

The weakness exists due to improper handling of objects in memory by NtUserMessageCall in the kernel-mode driver (win32k.sys). A local attacker can gain elevated privileges and execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

6) Privilege escalation (CVE-ID: CVE-2013-1340)

The vulnerability allows a local attacker to obtain elevated privileges on the target system.

The weakness exists due to improper handling of objects in memory by the kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

7) Privilege escalation (CVE-ID: CVE-2013-1345)

The vulnerability allows a local attacker to obtain elevated privileges on the target system.

The weakness exists due to improper handling of Dynamic Data Exchange objects by the kernel-mode driver (win32k.sys). A local attacker can run a specially crafted application to gain elevated privileges and execute arbitrary code with SYSTEM privileges.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://technet.microsoft.com/en-us/library/security/ms13-053