Apache HTTP Server socket starvation denial of service
| apache-socket-starvation-dos (15540) |  Medium Risk |
Description:
Apache HTTP Server is vulnerable to a denial of service, caused by a listening socket starvation vulnerability. By establishing a connection, for a short period of time, to a listening socket that is rarely accessed, a remote attacker could cause the server to deny new connection requests until another connection is established on the socket.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Apache HTTP Server (2.0.49 or later), available from the Apache HTTP Server Web site. See References.
For Trustix Secure Linux:
Upgrade to the latest apache package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0017 for more information. See References.
Trustix Secure Linux 2.0: 2.0.49-2tr or later
Trustix Secure Linux 2.1: 2.0.49-2tr or later
For Trustix Secure Linux:
Upgrade to the latest apache package, as listed below. Refer to Trustix Secure Linux Security Advisory #2004-0027 for more information. See References.
Trustix Secure Linux 1.5: 1.3.31-1tr or later
For Conectiva Linux:
Upgrade to the latest apache package, as listed below. Refer to Conectiva Linux Security Announcement CLSA-2004:839. See References.
Conectiva Linux 8: 1.3.28-1U80_3cl or later
Conectiva Linux 9: 2.0.45-2879OU90_6cl or later
For Slackware Linux:
Upgrade to the latest apache package, as listed below. Refer to slackware-security Mailing List, Wed, 12 May 2004 16:54:58 -0700 (PDT) for more information. See References.
Slackware Linux 8.1 and 9.0: 1.3.29-i386-2 or later
Slackware Linux 9.1: 1.3.29-i486-2 or later
Slackware Linux -current: 1.3.31-i486-1
or Mandrake Linux:
Upgrade to the latest apache package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:046 : apache for more information. See References.
Mandrake Linux 9.1: 1.3.27_1.3.4-7.1.91mdk or later
Mandrake Linux 9.2: 1.3.28_1.3.4-1.1.92mdk or later
Mandrake Linux Multi Network Firewall 8.2: 1.3.23-4.4.M82mdk or later
Mandrake Linux Corporate Server 2.1: 1.3.26-7.1.C21mdk or later
Mandrake Linux 10.0: 1.3.29-1.1.100mdk or later
For Gentoo Linux:
Upgrade to the latest version of apache (1.3.31 or later), as listed in GLSA 200405-22. See References.
For HP Tru64 UNIX 5.1B:
Apply the appropriate Early Release Patches (ERPs) for your system, as listed in HP Security Bulletin HPSBTU01049. See References.
For HP-UX B.11.04 with Virtualvault 4.7, Virtualvault 4.6, or Virtualvault 4.5:
Apply the appropriate patches for your system, as listed in HP Security Bulletin HPSBUX01069. See References.
For Sun Solaris:
Apply the appropriate patch for your system, as listed below. Refer to Sun Alert ID: 57628 for more information. See References.
SPARC Platform
Solaris 8 with patch 116973-01 or later
Solaris 9 with patch 113146-05 or later
x86 Platform
Solaris 8 with patch 116974-01 or later
Solaris 9 with patch 114145-04 or later
For Mac OS:
Apply Security Update 2004-12-02, as listed in AppleCare Knowledge Base Document 61798. See References.
For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2004.021 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Apache HTTP Server Project Web site: Welcome! - The Apache HTTP Server Project.
- AppleCare Knowledge Base Document 61798: Security Update 2004-12-02.
- CIAC Information Bulletin O-128: Apache HTTP Server 2.0.49 Release Fixes Security Vulnerabilities.
- CIAC Information Bulletin O-128: Apache HTTP Server 2.0.49 Release Fixes Security Vulnerabilities [REVISED 4 Aug 2004].
- CIAC Information Bulletin O-128: Apache HTTP Server 2.0.49 Release Fixes Security Vulnerabilities [REVISED 7 July 2004].
- CIAC Information Bulletin O-138: Apple Mac OS X Jaguar and Panther Security Vulnerabilities.
- CIAC Information Bulletin P-049: Apple Security Update 2004-12-02.
- Conectiva Linux Security Announcement CLSA-2004:839: DoS in mod_ssl and log escape sequences vulnerability.
- GLSA 200405-22: Apache 1.3: Multiple vulnerabilities.
- slackware-security Mailing List, Wed, 12 May 2004 16:54:58 -0700 (PDT): apache (SSA:2004-133-01).
- Sun Alert ID: 57628: Security Vulnerabilities in the Apache Web Server and Apache Modules.
- Sun Alert ID: 57628: Security Vulnerabilities in the Apache Web Server and Apache Modules.
- Trustix Secure Linux Security Advisory #2004-0017: apache. (From LinuxSecurity archive)
- Trustix Secure Linux Security Advisory #2004-0027: apache.
- BID-9921: Apache Connection Blocking Denial Of Service Vulnerability
- CVE-2004-0174: Apache 1.4.x before 1.3.30, and 2.0.x before 2.0.49, when using multiple listening sockets on certain platforms, allows remote attackers to cause a denial of service (blocked new connections) via a short-lived connection on a rarely-accessed listening socket.
- GLSA-200405-22: Apache 1.3: Multiple vulnerabilities
- MDKSA-2004:046: Updated apache packages fix a number of vulnerabilities
- OpenPKG-SA-2004.021: Apache
- SA11170: Apache Connection Denial of Service Vulnerability
- SECTRACK ID: 1009495: Apache Web Server Socket Starvation Flaw May Let Remote Users Deny Service
- SUSE-SA:2003:014: kdelibs: remote file creation
- SUSE-SA:2004:008: cvs: remote code execution
- SUSE-SA:2004:009: Linux Kernel: local privilege escalation / information leakage
- SUSE-SA:2004:012: mc: local privilege escalation
- SUSE-SA:2004:015: cvs: remote command execution
Platforms Affected:
- Apache HTTP Server 2.0
- Apache HTTP Server 2.0 A9
- Apache HTTP Server 2.0.28
- Apache HTTP Server 2.0.28 Beta
- Apache HTTP Server 2.0.32
- Apache HTTP Server 2.0.32 Beta
- Apache HTTP Server 2.0.34 Beta
- Apache HTTP Server 2.0.35
- Apache HTTP Server 2.0.36
- Apache HTTP Server 2.0.37
- Apache HTTP Server 2.0.38
- Apache HTTP Server 2.0.39
- Apache HTTP Server 2.0.40
- Apache HTTP Server 2.0.41
- Apache HTTP Server 2.0.42
- Apache HTTP Server 2.0.43
- Apache HTTP Server 2.0.44
- Apache HTTP Server 2.0.45
- Apache HTTP Server 2.0.46
- Apache HTTP Server 2.0.47
- Apache HTTP Server 2.0.48
- Apache HTTP Server 2.0.49
- Apple Mac OS X 10.2.8
- Apple Mac OS X 10.3.6
- Apple Mac OS X Server 10.2.8
- Apple Mac OS X Server 10.3.6
- Compaq Tru64 5.1b
- Conectiva Linux 8.0
- Conectiva Linux 9.0
- Gentoo Linux
- HP HP-UX 11.04
- MandrakeSoft Mandrake Linux 10.0
- MandrakeSoft Mandrake Linux 10.0 AMD64
- MandrakeSoft Mandrake Linux 9.1 PPC
- MandrakeSoft Mandrake Linux 9.1
- MandrakeSoft Mandrake Linux 9.2
- MandrakeSoft Mandrake Linux 9.2 AMD64
- MandrakeSoft Mandrake Linux Corporate Server 2.1
- MandrakeSoft Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 8.2
- Novell SuSE Linux Enterprise Server 7.0
- Novell UnitedLinux 1.0
- OpenPKG OpenPKG 1.3
- OpenPKG OpenPKG 2.0
- OpenPKG OpenPKG CURRENT
- Slackware Slackware Linux 8.1
- Slackware Slackware Linux 9.0
- Slackware Slackware Linux 9.1
- Slackware Slackware Linux current
- Sun Solaris 8
- Sun Solaris 9
- SUSE SuSE Linux 8.1
- SUSE SuSE Linux 9.0
- SUSE SuSE Linux 9.1
- SuSE SuSE Linux Connectivity Server
- SuSE SuSE Linux Database Server
- SuSE SuSE Linux Desktop 1.0
- SuSE SuSE Linux Office Server
- Trustix Secure Linux 1.5
- Trustix Secure Linux 2.0
- Trustix Secure Linux 2.1
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 7 Workstation
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux 8 Workstation
- Turbolinux Turbolinux Advanced Server 6
- Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
- Turbolinux Turbolinux Server 6.1
- Turbolinux Turbolinux Server 6.5
- Turbolinux Turbolinux Workstation 6.0
Reported:
Mar 19, 2004
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