Apache Bugs Let Remote Users Deny Service and Obtain Cookie Data
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SecurityTracker Alert ID: 1026616 |
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SecurityTracker URL: http://securitytracker.com/id/1026616
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CVE Reference:
CVE-2012-0021, CVE-2012-0031, CVE-2012-0053
(Links to External Site)
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Date: Feb 1 2012
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Impact:
Denial of service via network, Disclosure of system information, Disclosure of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): prior to 2.2.22
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Description:
Several vulnerabilities were reported in Apache. A remote user can cause denial of service conditions. A remote user can obtain potentially sensitive information.
When the system is configured to use the '%{cookiename}C' log format string, a remote user can send a specially crafted (nameless, valueless cookie) to trigger a flaw in mod_log_config and cause the service to crash [CVE-2012-0021]. This flaw was introduced in version 2.2.17.
A remote user may be able to exploit a scoreboard flaw cause (via an unprivileged child process) the parent process to crash at shutdown [CVE-2012-0031].
When no custom ErrorDocument is specified for status code 400, a remote user may be able to trigger a flaw in error responses to obtain 'httpOnly' cookies [CVE-2012-0053].
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Impact:
A remote user can cause denial of service conditions.
A remote user can obtain potentially sensitive cookie data.
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Solution:
The vendor has issued a fix (2.2.22).
The vendor's advisory is available at:
http://httpd.apache.org/security/vulnerabilities_22.html
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Vendor URL: httpd.apache.org/ (Links to External Site)
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Cause:
Access control error, State error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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