Oracle Java Runtime Environment (JRE) contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability is due to insufficient bound checks performed by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by convincing a targeted user to open a crafted web page. If successful, the attacker could cause execute arbitrary code on the targeted system.
Oracle has confirmed the vulnerability and software updates are available.
Indicators of Compromise
The following Oracle products are vulnerable:
JRE 7 Update 11 and prior
JRE 6 Update 38 and prior
JRE 5 update 38 and prior
JRE 1.4.2_40 and prior
The vulnerability is in the Java AWT Image Transform library functions due to insufficient bounds checks on user-supplied data. During the memory allocation process for certain image transformation functions, Java could ignore the numBands value and could use the static 0x4h value to allocate heap memory for user-supplied data. This could cause a heap buffer overflow memory corruption error.
An unauthenticated, remote attacker could exploit the vulnerability by convincing a targeted user to visit a malicious web page. Successful exploitation could allow the attacker to execute arbitrary code with the privileges of the application, that could result in a complete system compromise.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
Administrators are advised to apply the appropriate updates.
Users should verify that unsolicited links are safe to follow.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
Red Hat Enterprise Linux Workstation Supplementary
6 (IA-32, x86_64)
5 (IA-32, PPC, PPC64, S390, S390x, x86_64)
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM
THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products
Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.