December 7, 2009

Mandriva Linux Security Advisory 2009:323: apache

Multiple vulnerabilities has been found and corrected in apache:

Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c
in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to
cause a denial of service (memory consumption) via multiple calls, as
demonstrated by initial SSL client handshakes to the Apache HTTP Server
mod_ssl that specify a compression algorithm (CVE-2008-1678). Note
that this security issue does not really apply as zlib compression
is not enabled in the openssl build provided by Mandriva, but apache
is patched to address this issue anyway (conserns 2008.1 only).

mod_proxy_ajp.c in the mod_proxy_ajp module in the Apache HTTP Server
2.2.11 allows remote attackers to obtain sensitive response data,
intended for a client that sent an earlier POST request with no
request body, via an HTTP request (CVE-2009-1191).

Cross-site scripting (XSS) vulnerability in proxy_ftp.c in the
mod_proxy_ftp module in Apache 2.0.63 and earlier, and mod_proxy_ftp.c
in the mod_proxy_ftp module in Apache 2.2.9 and earlier 2.2 versions,
allows remote attackers to inject arbitrary web script or HTML via
wildcards in a pathname in an FTP URI (CVE-2008-2939). Note that this
security issue was initially addressed with MDVSA-2008:195 but the
patch fixing the issue was added but not applied in 2009.0.

The Apache HTTP Server 2.2.11 and earlier 2.2 versions does not
properly handle Options=IncludesNOEXEC in the AllowOverride directive,
which allows local users to gain privileges by configuring (1) Options
Includes, (2) Options +Includes, or (3) Options +IncludesNOEXEC in a
.htaccess file, and then inserting an exec element in a .shtml file

The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy
module in the Apache HTTP Server before 2.3.3, when a reverse proxy
is configured, does not properly handle an amount of streamed data
that exceeds the Content-Length value, which allows remote attackers
to cause a denial of service (CPU consumption) via crafted requests

Fix a potential Denial-of-Service attack against mod_deflate or other
modules, by forcing the server to consume CPU time in compressing a
large file after a client disconnects (CVE-2009-1891).

The ap_proxy_ftp_handler function in modules/proxy/proxy_ftp.c in
the mod_proxy_ftp module in the Apache HTTP Server 2.0.63 and 2.2.13
allows remote FTP servers to cause a denial of service (NULL pointer
dereference and child process crash) via a malformed reply to an EPSV
command (CVE-2009-3094).

The mod_proxy_ftp module in the Apache HTTP Server allows remote
attackers to bypass intended access restrictions and send arbitrary
commands to an FTP server via vectors related to the embedding of these
commands in the Authorization HTTP header, as demonstrated by a certain
module in VulnDisco Pack Professional 8.11. NOTE: as of 20090903,
this disclosure has no actionable information. However, because the
VulnDisco Pack author is a reliable researcher, the issue is being
assigned a CVE identifier for tracking purposes (CVE-2009-3095).

Apache is affected by SSL injection or man-in-the-middle attacks
due to a design flaw in the SSL and/or TLS protocols. A short term
solution was released Sat Nov 07 2009 by the ASF team to mitigate
these problems. Apache will now reject in-session renegotiation

Packages for 2008.0 are being provided due to extended support for
Corporate products.

This update provides a solution to these vulnerabilities.

Click Here!