REDHAT-BUG-761245: Buffer Overflow

Published Dec 7, 2011
·
Updated

There exists a integer overflow to buffer overflow vulnerability within tzfileread function of the GNU C Library. This vulnerability was published by dividead early in 2009 in the following blog post:

http://dividead.wordpress.com/2009/06/01/glibc-timezone-integer-overflow/

In December 3, Kingcope, at Full Disclosure Mailing List, noted vsftpd as one possible attack vector for this issue:

http://lists.grok.org.uk/pipermail/full-disclosure/2011-December/084452.html

Affected Software

2 affected components
GNU C Library
vsftpd vsftpd

Event History

Dec 7, 2011
Data Sourced
via Red Hat·10:06 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-761245?

The severity of REDHAT-BUG-761245 is considered high due to the potential for remote code execution resulting from the integer overflow to buffer overflow vulnerability.

2

How do I fix REDHAT-BUG-761245?

To fix REDHAT-BUG-761245, it is recommended to update the GNU C Library to the latest version that contains the necessary security patches.

3

What systems are affected by REDHAT-BUG-761245?

REDHAT-BUG-761245 affects systems running the GNU C Library and certain versions of vsftpd.

4

What is the nature of the vulnerability in REDHAT-BUG-761245?

REDHAT-BUG-761245 is an integer overflow vulnerability that can lead to a buffer overflow within the __tzfile_read function.

5

When was REDHAT-BUG-761245 published?

REDHAT-BUG-761245 was publicly disclosed by the researcher dividead in early 2009.

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