Netscape Composer Font Face Field Buffer Overflow Vulnerability
BID:5010
Info
Netscape Composer Font Face Field Buffer Overflow Vulnerability
| Bugtraq ID: | 5010 |
| Class: | Boundary Condition Error |
| CVE: | |
| Remote: | No |
| Local: | Yes |
| Published: | Jun 13 2002 12:00AM |
| Updated: | Jun 13 2002 12:00AM |
| Credit: | Vulnerability discovery credited to S[h]iff - [ISR] - Infobyte Security Research <[email protected]>. |
| Vulnerable: |
Netscape Communicator 4.77 |
| Not Vulnerable: | |
Discussion
Netscape Composer Font Face Field Buffer Overflow Vulnerability
Netscape is a freely available web browser distributed by Netscape Communications, and available for various platforms. This vulnerability is known to affect those installations on the Linux platform.
A buffer overflow has been reported in the Composer function of Netscape. When an HTML page with a Font Face field of arbitrary length is edited using Netscape Composer, a memory corruption bug may occur that could allow the overwriting of process memory, and execution of attacker supplied code.
Netscape is a freely available web browser distributed by Netscape Communications, and available for various platforms. This vulnerability is known to affect those installations on the Linux platform.
A buffer overflow has been reported in the Composer function of Netscape. When an HTML page with a Font Face field of arbitrary length is edited using Netscape Composer, a memory corruption bug may occur that could allow the overwriting of process memory, and execution of attacker supplied code.
Exploit / POC
Netscape Composer Font Face Field Buffer Overflow Vulnerability
This proof of concept was made available by S[h]iff - [ISR] - Infobyte Security Research <[email protected]>:
<html>
<body>
<font face="X">Hola!</font>
</body>
</html>
where X is indicative of 191 or more characters.
---
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
This proof of concept was made available by S[h]iff - [ISR] - Infobyte Security Research <[email protected]>:
<html>
<body>
<font face="X">Hola!</font>
</body>
</html>
where X is indicative of 191 or more characters.
---
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution / Fix
Netscape Composer Font Face Field Buffer Overflow Vulnerability
Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
References
Netscape Composer Font Face Field Buffer Overflow Vulnerability
References:
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