Opera Content-Length header buffer overflow
| opera-contentlength-bo (56673) |  High Risk |
Description:
Opera is vulnerable to a heap-based buffer overflow, caused by improper bounds checking when handling HTTP responses. By sending a specially-crafted HTTP response containing an overly long Content-Length header, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.
*CVSS:
| Base Score: | 7.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.9 |
| Exploitability: | Proof-of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Opera (10.51 or later), available from the Opera Web site. See References.
References:
- Offensive Security Exploit Database [03-03-2010]: Opera <= 10.50 integer overflow .
- Opera Web site: Opera 10.50 Web browser.
- BID-38519: Opera Web Browser 'Content-Length' Header Integer Overflow Vulnerability
- CVE-2010-1349: Integer overflow in Opera 10.10 through 10.50 allows remote attackers to execute arbitrary code via a large Content-Length value, which triggers a heap overflow.
- OSVDB ID: 62714: Opera HTTP Content-Length Header Handling Remote Overflow
- SA38820: Opera "Content-Length" Processing Buffer Overflow Vulnerability
- SECTRACK ID: 1023690: Opera Integer Overflow in Processing HTTP 'Content-Length' Reponses Lets Remote Users Execute Arbitrary Code
- VUPEN/ADV-2010-0529: Opera Browser Content-Length Header Buffer Overflow Vulnerability
Platforms Affected:
- Opera Opera Browser 10.0
- Opera Opera Browser 10.01
- Opera Opera Browser 10.10
- Opera Opera Browser 10.50
Reported:
Mar 03, 2010
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.