Apache mod_ssl Denial Of Service Vulnerability

BID:11094

Info

Apache mod_ssl Denial Of Service Vulnerability

Bugtraq ID: 11094
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2004-0748
Remote: Yes
Local: No
Published: Sep 02 2004 12:00AM
Updated: Jul 12 2009 07:06AM
Credit: Francis Wai <[email protected]> reported this vulnerability to the vendor.
Vulnerable: Turbolinux Turbolinux Server 10.0
Turbolinux Turbolinux Desktop 10.0
Turbolinux Home
Trustix Secure Linux 2.1
Trustix Secure Linux 2.0
Trustix Secure Enterprise Linux 2.0
Mandriva Linux Mandrake 10.0 AMD64
Mandriva Linux Mandrake 10.0
Mandriva Linux Mandrake 9.2 amd64
Mandriva Linux Mandrake 9.2
HP HP-UX B.11.23
HP HP-UX B.11.22
HP HP-UX B.11.11
HP HP-UX B.11.00
Gentoo Linux 1.4
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya Converged Communications Server 2.0
Apache Apache 2.0.50
+ Mandriva Linux Mandrake 10.1 x86_64
 + Mandriva Linux Mandrake 10.1
Apache Apache 2.0.49
+ S.u.S.E. Linux Personal 9.1
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Apache Apache 2.0.48
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
+ S.u.S.E. Linux Personal 8.2
+ SuSE Linux 8.1
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Apache Apache 2.0.47
+ Apple Mac OS X Server 10.3.5
+ Apple Mac OS X Server 10.3.4
+ Apple Mac OS X Server 10.3.3
+ Apple Mac OS X Server 10.3.2
+ Apple Mac OS X Server 10.3.1
+ Apple Mac OS X Server 10.3
+ Apple Mac OS X Server 10.2.8
+ Apple Mac OS X Server 10.2.7
+ Apple Mac OS X Server 10.2.6
+ Apple Mac OS X Server 10.2.5
+ Apple Mac OS X Server 10.2.4
+ Apple Mac OS X Server 10.2.3
+ Apple Mac OS X Server 10.2.2
+ Apple Mac OS X Server 10.2.1
+ Apple Mac OS X Server 10.2
+ Apple Mac OS X Server 10.1.5
+ Apple Mac OS X Server 10.1.4
+ Apple Mac OS X Server 10.1.3
+ Apple Mac OS X Server 10.1.2
+ Apple Mac OS X Server 10.1.1
+ Apple Mac OS X Server 10.1
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
Apache Apache 2.0.46
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 + Trustix Secure Linux 2.0
Apache Apache 2.0.45
- Apple Mac OS X 10.2.6
- Apple Mac OS X 10.2.5
- Apple Mac OS X 10.2.4
- Apple Mac OS X 10.2.3
- Apple Mac OS X 10.2.2
- Apple Mac OS X 10.2.1
- Apple Mac OS X 10.2
- Apple Mac OS X 10.1.5
- Apple Mac OS X 10.1.4
- Apple Mac OS X 10.1.3
- Apple Mac OS X 10.1.2
- Apple Mac OS X 10.1.1
- Apple Mac OS X 10.1
- Apple Mac OS X 10.1
- Apple Mac OS X 10.0.4
- Apple Mac OS X 10.0.3
- Apple Mac OS X 10.0.2
- Apple Mac OS X 10.0.1
- Apple Mac OS X 10.0
Apache Apache 2.0.44
Apache Apache 2.0.43
Apache Apache 2.0.42
+ Gentoo Linux 1.4 _rc1
 + Gentoo Linux 1.2
Apache Apache 2.0.41
Apache Apache 2.0.40
+ Redhat Linux 9.0 i386
 + Redhat Linux 8.0
+ Terra Soft Solutions Yellow Dog Linux 3.0
Apache Apache 2.0.39
Apache Apache 2.0.38
Apache Apache 2.0.37
Apache Apache 2.0.36
Apache Apache 2.0.35
Apache Apache 2.0.32
Apache Apache 2.0.28 Beta
Apache Apache 2.0.28
Apache Apache 2.0 a9
Apache Apache 2.0
Not Vulnerable: Apache Apache 2.0.51
+ Redhat Fedora Core2
 + Redhat Fedora Core1

Discussion

Apache mod_ssl Denial Of Service Vulnerability

Apache mod_ssl is reported susceptible to a denial of service vulnerability.

This issue presents itself during SSL connections to a vulnerable Apache server. The affected software may enter into an infinite loop in certain circumstances. This will consume CPU resources and potentially cause further connections to the affected server to fail.


All Apache versions from 2.0 through to 2.0.50 are reported vulnerable.

Update: Avaya has released an advisory identifying Avaya S8700/S8500/S8300 running CM 2.0 and later, and all versions of Avaya Converged Communication Server as vulnerable to this issue.

Exploit / POC

Apache mod_ssl Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] &lt;mailto:[email protected]&gt;.

Solution / Fix

Apache mod_ssl Denial Of Service Vulnerability

Solution:
Turbolinux has released advisory TLSA-2005-01-13 along with fixes dealing with this and other issues. Please see the referenced advisory for more information.

RedHat has released advisory RHSA-2004:349-10 addressing this, and other issues. Please see the referenced advisory for further information on obtaining fixes.

SuSE has released advisory SUSE-SA:2004:030 and fixes that eliminate this vulnerability. Please see the referenced advisory.

Mandrake Linux has released an advisory (MDKSA-2004:096) along with fixes dealing with this issue. Please see the referenced advisory for more information.

Trustix Secure Linux has released an advisory (TSLSA-2004-0047) along with fixes dealing with this, and other issues. Please see the referenced advisory for further information.

Gentoo Linux has released advisory GLSA 200409-21 to address this, and other issues. Please see the referenced advisory for further information. Users of affected packages are urged to execute the following with superuser privileges:
emerge sync
emerge -pv ">=net-www/apache-2.0.51"
emerge ">=net-www/apache-2.0.51"
emerge -pv ">=net-www/mod_dav-1.0.3-r2"
emerge ">=net-www/mod_dav-1.0.3-r2"

Conectiva Linux has released advisory CLA-2004:868 along with fixes to address this, and other issues. Please see the referenced advisory for further information.

Red Hat Fedora has released an advisory (FEDORA-2004-313) along with fixes dealing with this and other issues. Please see the referenced advisory for more information.

Apache has released version 2.0.51 to address this, and other issues:

HP has released an advisory (HPSBUX01090) to address various issues affecting HP-UX running Apache and PHP. Please see the referenced advisory for more information.

Apple has released an advisory (APPLE-SA-2004-12-02) dealing with this and other issues. Please see the referenced advisory for more information.


Apache Apache 2.0

Apache Apache 2.0 a9

Apache Apache 2.0.28

Apache Apache 2.0.28 Beta

Apache Apache 2.0.32

Apache Apache 2.0.35

Apache Apache 2.0.36

Apache Apache 2.0.37

Apache Apache 2.0.38

Apache Apache 2.0.39

Apache Apache 2.0.40

Apache Apache 2.0.41

Apache Apache 2.0.42

Apache Apache 2.0.43

Apache Apache 2.0.44

Apache Apache 2.0.45

Apache Apache 2.0.46

Apache Apache 2.0.47

Apache Apache 2.0.48

Apache Apache 2.0.49

Apache Apache 2.0.50

References

Apache mod_ssl Denial Of Service Vulnerability

References:

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