CentOS Update for httpd CESA-2009:1580 centos4 i386

Published: 2011-08-09 06:20:34
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Summary:
The remote host is missing an update for the 'httpd' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
httpd on CentOS 4

Technical Details:
The Apache HTTP Server is a popular Web server. A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update partially mitigates this flaw for SSL sessions to HTTP servers using mod_ssl by rejecting client-requested renegotiation. (CVE-2009-3555) Note: This update does not fully resolve the issue for HTTPS servers. An attack is still possible in configurations that require a server-initiated renegotiation. Refer to the linked following Knowledgebase article for further information. A denial of service flaw was found in the Apache mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. (CVE-2009-1891) A NULL pointer dereference flaw was found in the Apache mod_proxy_ftp module. A malicious FTP server to which requests are being proxied could use this flaw to crash an httpd child process via a malformed reply to the EPSV or PASV commands, resulting in a limited denial of service. (CVE-2009-3094) A second flaw was found in the Apache mod_proxy_ftp module. In a reverse proxy configuration, a remote attacker could use this flaw to bypass intended access restrictions by creating a carefully-crafted HTTP Authorization header, allowing the attacker to send arbitrary commands to the FTP server. (CVE-2009-3095) All httpd users should upgrade to these updated Linux Distribution Packages, which contain backported patches to correct these issues. After installing the updated Linux Distribution Packages, the httpd daemon must be restarted for the update to take effect.

Recommendations:
Please install the updated Linux Distribution Packages.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2009-1891
https://nvd.nist.gov/vuln/detail/CVE-2009-3094
https://nvd.nist.gov/vuln/detail/CVE-2009-3095
https://nvd.nist.gov/vuln/detail/CVE-2009-3555

References:

http://lists.centos.org/pipermail/centos-announce/2009-November/016318.html
http://kbase.redhat.com/faq/docs/DOC-20491

Severity
High
CVSS Score
7.5
Published
2011-08-09
Modified
2019-03-15
Category
CentOS Local Security Checks

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