Apache httpd 1.3 vulnerabilities

This page lists all security vulnerabilities fixed in released versions of Apache httpd 1.3. Each vulnerability is given a security impact rating by the Apache security team - please note that this rating may well vary from platform to platform. We also list the versions of Apache httpd the flaw is known to affect, and where a flaw has not been verified list the version with a question mark.

Please note that if a vulnerability is shown below as being fixed in a "-dev" release then this means that a fix has been applied to the development source tree and will be part of an upcoming full release.

This page is created from a database of vulnerabilities originally populated by Apache Week. Please send comments or corrections for these vulnerabilities to the Security Team.

Fixed in Apache httpd 1.3.42
moderate: mod_proxy overflow on 64-bit systems CVE-2010-0010

An incorrect conversion between numeric types flaw was found in the mod_proxy module which affects some 64-bit architecture systems. A malicious HTTP server to which requests are being proxied could use this flaw to trigger a heap buffer overflow in an httpd child process via a carefully crafted response.

Update Released: 3rd February 2010
Affects: 1.3.41, 1.3.39, 1.3.37, 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2
Fixed in Apache httpd 1.3.41
moderate: mod_status XSS CVE-2007-6388

A flaw was found in the mod_status module. On sites where mod_status is enabled and the status pages were publicly accessible, a cross-site scripting attack is possible. Note that the server-status page is not enabled by default and it is best practice to not make this publicly available.

Update Released: 19th January 2008
Affects: 1.3.39, 1.3.37, 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2
moderate: mod_imap XSS CVE-2007-5000

A flaw was found in the mod_imap module. On sites where mod_imap is enabled and an imagemap file is publicly available, a cross-site scripting attack is possible.

Update Released: 19th January 2008
Affects: 1.3.39, 1.3.37, 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.39
moderate: mod_status cross-site scripting CVE-2006-5752

A flaw was found in the mod_status module. On sites where the server-status page is publicly accessible and ExtendedStatus is enabled this could lead to a cross-site scripting attack. Note that the server-status page is not enabled by default and it is best practice to not make this publicly available.

Update Released: 7th September 2007
Affects: 1.3.37, 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2
moderate: Signals to arbitrary processes CVE-2007-3304

The Apache HTTP server did not verify that a process was an Apache child process before sending it signals. A local attacker with the ability to run scripts on the HTTP server could manipulate the scoreboard and cause arbitrary processes to be terminated which could lead to a denial of service.

Update Released: 7th September 2007
Affects: 1.3.37, 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.37
important: mod_rewrite off-by-one error CVE-2006-3747

An off-by-one flaw exists in the Rewrite module, mod_rewrite. Depending on the manner in which Apache httpd was compiled, this software defect may result in a vulnerability which, in combination with certain types of Rewrite rules in the web server configuration files, could be triggered remotely. For vulnerable builds, the nature of the vulnerability can be denial of service (crashing of web server processes) or potentially allow arbitrary code execution.

Update Released: 27th July 2006
Affects: 1.3.36, 1.3.35, 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28
Fixed in Apache httpd 1.3.35
moderate: Expect header Cross-Site Scripting CVE-2006-3918

A flaw in the handling of invalid Expect headers. If an attacker can influence the Expect header that a victim sends to a target site they could perform a cross-site scripting attack. It is known that some versions of Flash can set an arbitrary Expect header which can trigger this flaw. Not marked as a security issue for 2.0 or 2.2 as the cross-site scripting is only returned to the victim after the server times out a connection.

Update Released: 1st May 2006
Affects: 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3
moderate: mod_imap Referer Cross-Site Scripting CVE-2005-3352

A flaw in mod_imap when using the Referer directive with image maps. In certain site configurations a remote attacker could perform a cross-site scripting attack if a victim can be forced to visit a malicious URL using certain web browsers.

Update Released: 1st May 2006
Affects: 1.3.34, 1.3.33, 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.33
moderate: mod_include overflow CVE-2004-0940

A buffer overflow in mod_include could allow a local user who is authorised to create server side include (SSI) files to gain the privileges of a httpd child.

Update Released: 28th October 2004
Affects: 1.3.32, 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.32
moderate: mod_proxy buffer overflow CVE-2004-0492

A buffer overflow was found in the Apache proxy module, mod_proxy, which can be triggered by receiving an invalid Content-Length header. In order to exploit this issue an attacker would need to get an Apache installation that was configured as a proxy to connect to a malicious site. This would cause the Apache child processing the request to crash, although this does not represent a significant Denial of Service attack as requests will continue to be handled by other Apache child processes. This issue may lead to remote arbitrary code execution on some BSD platforms.

Update Released: 20th October 2004
Affects: 1.3.31, 1.3.29, 1.3.28, 1.3.27, 1.3.26
Fixed in Apache httpd 1.3.31
important: listening socket starvation CVE-2004-0174

A starvation issue on listening sockets occurs when a short-lived connection on a rarely-accessed listening socket will cause a child to hold the accept mutex and block out new connections until another connection arrives on that rarely-accessed listening socket. This issue is known to affect some versions of AIX, Solaris, and Tru64; it is known to not affect FreeBSD or Linux.

Update Released: 12th May 2004
Affects: 1.3.29, 1.3.28?, 1.3.27?, 1.3.26?, 1.3.24?, 1.3.22?, 1.3.20?, 1.3.19?, 1.3.17?, 1.3.14?, 1.3.12?, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
important: Allow/Deny parsing on big-endian 64-bit platforms CVE-2003-0993

A bug in the parsing of Allow/Deny rules using IP addresses without a netmask on big-endian 64-bit platforms causes the rules to fail to match.

Update Released: 12th May 2004
Affects: 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
low: Error log escape filtering CVE-2003-0020

Apache does not filter terminal escape sequences from error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

Update Released: 12th May 2004
Affects: 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
low: mod_digest nonce checking CVE-2003-0987

mod_digest does not properly verify the nonce of a client response by using a AuthNonce secret. This could allow a malicious user who is able to sniff network traffic to conduct a replay attack against a website using Digest protection. Note that mod_digest implements an older version of the MD5 Digest Authentication specification which is known not to work with modern browsers. This issue does not affect mod_auth_digest.

Update Released: 12th May 2004
Affects: 1.3.29, 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.29
low: Local configuration regular expression overflow CVE-2003-0542

By using a regular expression with more than 9 captures a buffer overflow can occur in mod_alias or mod_rewrite. To exploit this an attacker would need to be able to create a carefully crafted configuration file (.htaccess or httpd.conf)

Update Released: 27th October 2003
Affects: 1.3.28, 1.3.27, 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.28
important: RotateLogs DoS CVE-2003-0460

The rotatelogs support program on Win32 and OS/2 would quit logging and exit if it received special control characters such as 0x1A.

Update Released: 18th July 2003
Affects: 1.3.27, 1.3.26?, 1.3.24?, 1.3.22?, 1.3.20?, 1.3.19?, 1.3.17?, 1.3.14?, 1.3.12?, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
Fixed in Apache httpd 1.3.27
important: Buffer overflows in ab utility CVE-2002-0843

Buffer overflows in the benchmarking utility ab could be exploited if ab is run against a malicious server

Update Released: 3rd October 2002
Affects: 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
important: Shared memory permissions lead to local privilege escalation CVE-2002-0839

The permissions of the shared memory used for the scoreboard allows an attacker who can execute under the Apache UID to send a signal to any process as root or cause a local denial of service attack.

Update Released: 3rd October 2002
Affects: 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
low: Error page XSS using wildcard DNS CVE-2002-0840

Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before 2.0.43, and 1.3.x up to 1.3.26, when UseCanonicalName is "Off" and support for wildcard DNS is present, allows remote attackers to execute script as other web page visitors via the Host: header.

Update Released: 3rd October 2002
Affects: 1.3.26, 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.26
critical: Apache Chunked encoding vulnerability CVE-2002-0392

Requests to all versions of Apache 1.3 can cause various effects ranging from a relatively harmless increase in system resources through to denial of service attacks and in some cases the ability to be remotely exploited.

Update Released: 18th June 2002
Affects: 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
low: Filtered escape sequences CVE-2003-0083

Apache does not filter terminal escape sequences from its access logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences,

Update Released: 18th June 2002
Affects: 1.3.24, 1.3.22, 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.24
critical: Win32 Apache Remote command execution CVE-2002-0061

Apache for Win32 before 1.3.24 and 2.0.34-beta allows remote attackers to execute arbitrary commands via parameters passed to batch file CGI scripts.

Update Released: 22nd March 2002
Affects: 1.3.22, 1.3.20?, 1.3.19?, 1.3.17?, 1.3.14?, 1.3.12?, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
Fixed in Apache httpd 1.3.22
important: Requests can cause directory listing to be displayed CVE-2001-0729

A vulnerability was found in the Win32 port of Apache 1.3.20. A client submitting a very long URI could cause a directory listing to be returned rather than the default index page.

Update Released: 12th October 2001
Affects: 1.3.20
important: Multiviews can cause a directory listing to be displayed CVE-2001-0731

A vulnerability was found when Multiviews are used to negotiate the directory index. In some configurations, requesting a URI with a QUERY_STRING of M=D could return a directory listing rather than the expected index page.

Update Released: 12th October 2001
Affects: 1.3.20, 1.3.19?, 1.3.17?, 1.3.14?, 1.3.12?, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
moderate: split-logfile can cause arbitrary log files to be written to CVE-2001-0730

A vulnerability was found in the split-logfile support program. A request with a specially crafted Host: header could allow any file with a .log extension on the system to be written to.

Update Released: 12th October 2001
Affects: 1.3.20, 1.3.19, 1.3.17, 1.3.14, 1.3.12, 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.20
important: Denial of service attack on Win32 and OS2 CVE-2001-1342

A vulnerability was found in the Win32 and OS2 ports of Apache 1.3. A client submitting a carefully constructed URI could cause a General Protection Fault in a child process, bringing up a message box which would have to be cleared by the operator to resume operation. This vulnerability introduced no identified means to compromise the server other than introducing a possible denial of service.

Update Released: 22nd May 2001
Affects: 1.3.20, 1.3.19?, 1.3.17?, 1.3.14?, 1.3.12?, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
Fixed in Apache httpd 1.3.19
important: Requests can cause directory listing to be displayed CVE-2001-0925

The default installation can lead mod_negotiation and mod_dir or mod_autoindex to display a directory listing instead of the multiview index.html file if a very long path was created artificially by using many slashes.

Update Released: 28th February 2001
Affects: 1.3.17, 1.3.14, 1.3.12, 1.3.11
Fixed in Apache httpd 1.3.14
important: Rewrite rules that include references allow access to any file CVE-2000-0913

The Rewrite module, mod_rewrite, can allow access to any file on the web server. The vulnerability occurs only with certain specific cases of using regular expression references in RewriteRule directives: If the destination of a RewriteRule contains regular expression references then an attacker will be able to access any file on the server.

Update Released: 13th October 2000
Affects: 1.3.12, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
important: Mass virtual hosting can display CGI source CVE-2000-1204

A security problem for users of the mass virtual hosting module, mod_vhost_alias, causes the source to a CGI to be sent if the cgi-bin directory is under the document root. However, it is not normal to have your cgi-bin directory under a document root.

Update Released: 13th October 2000
Affects: 1.3.12, 1.3.11, 1.3.9
moderate: Requests can cause directory listing to be displayed on NT CVE-2000-0505

A security hole on Apache for Windows allows a user to view the listing of a directory instead of the default HTML page by sending a carefully constructed request.

Update Released: 13th October 2000
Affects: 1.3.12, 1.3.11?, 1.3.9?, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
Fixed in Apache httpd 1.3.12
important: Cross-site scripting can reveal private session information CVE-2000-1205

Apache was vulnerable to cross site scripting issues. It was shown that malicious HTML tags can be embedded in client web requests if the server or script handling the request does not carefully encode all information displayed to the user. Using these vulnerabilities attackers could, for example, obtain copies of your private cookies used to authenticate you to other sites.

Update Released: 25th February 2000
Affects: 1.3.11, 1.3.9, 1.3.6, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.11
moderate: Mass virtual hosting security issue CVE-2000-1206

A security problem can occur for sites using mass name-based virtual hosting (using the new mod_vhost_alias module) or with special mod_rewrite rules.

Update Released: 21st January 2000
Affects: 1.3.9, 1.3.6?, 1.3.4?, 1.3.3?, 1.3.2?, 1.3.1?, 1.3.0?
Fixed in Apache httpd 1.3.4
important: Denial of service attack on Win32

There have been a number of important security fixes to Apache on Windows. The most important is that there is much better protection against people trying to access special DOS device names (such as "nul").

Update Released: 11th January 1999
Affects: 1.3.3, 1.3.2, 1.3.1, 1.3.0
Fixed in Apache httpd 1.3.2
important: Multiple header Denial of Service vulnerability CVE-1999-1199

A serious problem exists when a client sends a large number of headers with the same header name. Apache uses up memory faster than the amount of memory required to simply store the received data itself. That is, memory use increases faster and faster as more headers are received, rather than increasing at a constant rate. This makes a denial of service attack based on this method more effective than methods which cause Apache to use memory at a constant rate, since the attacker has to send less data.

Update Released: 23rd September 1998
Affects: 1.3.1, 1.3.0
important: Denial of service attacks

Apache 1.3.2 has better protection against denial of service attacks. These are when people make excessive requests to the server to try and prevent other people using it. In 1.3.2 there are several new directives which can limit the size of requests (these directives all start with the word Limit).

Update Released: 23rd September 1998
Affects: 1.3.1, 1.3.0
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