The vulnerability appears to be connected to the group of Chinese hackers responsible for unleashing a pair of Java zero-day exploits in 2012. After examining of the geographical location of the targets for CVE-2010-3971, these attack attempts bear a close resemblance to those targeting CVE-2010-3962, another Internet Explorer issue that was dubbed as the Weekend Warrior.
Vulnerable component: Microsoft Internet Explorer
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C
CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when parsing CSS styles. A remote attacker can create a specially crafted web page containing Cascading Style Sheet that refers to itself recursively, cause memory corruption and execute arbitrary code on the target system with privileges of the current user.
Successful exploitation of this vulnerability may allow an attacker to compromise vulnerable system.
Note: this vulnerability is being actively exploited.
- Microsoft Internet Explorer 8 - CSS Parser Denial of Service [Exploit-DB]
- Microsoft Internet Explorer 8 - CSS Parser Exploit [Exploit-DB]