CVE-2009-1891

Severity

71%

Complexity

86%

Confidentiality

115%

The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).

The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).

CVSS 2.0 Base Score 7.1. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C).

Overview

Type

Apache Software Foundation

First reported 15 years ago

2009-07-10 15:30:00

Last updated 6 years ago

2018-10-30 16:25:00

Affected Software

Apache Software Foundation Apache HTTP Server

Apache Software Foundation Apache HTTP Server 0.8.11

0.8.11

Apache Software Foundation Apache HTTP Server 0.8.14

0.8.14

Apache Software Foundation Apache HTTP Server 1.0.2

1.0.2

Apache Software Foundation Apache HTTP Server 1.0.3

1.0.3

Apache Software Foundation Apache HTTP Server 1.0.5

1.0.5

Apache Software Foundation Apache HTTP Server 1.1

1.1

Apache Software Foundation Apache HTTP Server 1.1.1

1.1.1

Apache Software Foundation Apache 1.2

1.2

Apache Software Foundation Apache HTTP Server 1.2.4

1.2.4

Apache Software Foundation Apache 1.29

1.2.9

Apache Software Foundation Apache HTTP Server 1.3.3

1.3.3

Apache Software Foundation Apache HTTP Server 1.3.6

1.3.6

Apache Software Foundation Apache HTTP Server 1.3.7

1.3.7

Apache Software Foundation Apache HTTP Server 1.3.9

1.3.9

Apache Software Foundation Apache 1.3.13

1.3.13

Apache Software Foundation Apache HTTP Server 1.3.14

1.3.14

Apache Software Foundation Apache HTTP Server 1.3.18

1.3.18

Apache Software Foundation Apache HTTP Server 1.3.19

1.3.19

Apache Software Foundation Apache HTTP Server 1.3.20

1.3.20

Apache Software Foundation Apache HTTP Server 1.3.22

1.3.22

Apache Software Foundation Apache HTTP Server 1.3.23

1.3.23

Apache Software Foundation Apache HTTP Server 1.3.27

1.3.27

Apache Software Foundation Apache HTTP Server 1.3.29

1.3.29

Apache Software Foundation Apache HTTP Server 1.3.31

1.3.31

Apache Software Foundation Apache HTTP Server 1.3.33

1.3.33

Apache Software Foundation Apache HTTP Server 1.3.38

1.3.38

Apache Software Foundation Apache HTTP Server 1.99

1.99

Apache Software Foundation Apache HTTP Server 2.0.9a

2.0.9

Apache Software Foundation Apache HTTP Server 2.0.28

2.0.28

Apache Software Foundation Apache HTTP Server 2.0.34 Beta

2.0.34

Apache Software Foundation Apache HTTP Server 2.0.38

2.0.38

Apache Software Foundation Apache HTTP Server 2.0.39

2.0.39

Apache Software Foundation Apache HTTP Server 2.0.40

2.0.40

Apache Software Foundation Apache HTTP Server 2.0.41

2.0.41

Apache Software Foundation Apache HTTP Server 2.0.42

2.0.42

Apache Software Foundation Apache HTTP Server 2.0.45

2.0.45

Apache Software Foundation Apache HTTP Server 2.0.46

2.0.46

Apache Software Foundation Apache HTTP Server 2.0.47

2.0.47

Apache Software Foundation Apache HTTP Server 2.0.48

2.0.48

Apache Software Foundation Apache HTTP Server 2.0.49

2.0.49

Apache Software Foundation Apache HTTP Server 2.0.50

2.0.50

Apache Software Foundation Apache HTTP Server 2.0.51

2.0.51

Apache Software Foundation Apache HTTP Server 2.0.52

2.0.52

Apache Software Foundation Apache HTTP Server 2.0.53

2.0.53

Apache Software Foundation Apache HTTP Server 2.0.54

2.0.54

Apache Software Foundation Apache HTTP Server 2.0.55

2.0.55

Apache Software Foundation Apache HTTP Server 2.0.56

2.0.56

Apache Software Foundation Apache HTTP Server 2.0.57

2.0.57

Apache Software Foundation Apache HTTP Server 2.0.58

2.0.58

Apache Software Foundation HTTP Server 2.0.59

2.0.59

Apache Software Foundation Apache HTTP Server 2.0.60 dev

2.0.60

Apache Software Foundation HTTP Server 2.0.61

2.0.61

Apache Software Foundation Apache HTTP Server 2.1

2.1

Apache Software Foundation Apache HTTP Server 2.1.1

2.1.1

Apache Software Foundation Apache HTTP Server 2.1.2

2.1.2

Apache Software Foundation Apache HTTP Server 2.1.3

2.1.3

Apache Software Foundation Apache HTTP Server 2.1.4

2.1.4

Apache Software Foundation Apache HTTP Server 2.1.5

2.1.5

Apache Software Foundation Apache HTTP Server 2.1.6

2.1.6

Apache Software Foundation Apache HTTP Server 2.1.7

2.1.7

Apache Software Foundation Apache HTTP Server 2.1.8

2.1.8

Apache Software Foundation Apache HTTP Server 2.1.9

2.1.9

Apache Software Foundation Apache HTTP Server 2.2

2.2

Apache Software Foundation Apache HTTP Server 2.2.0

2.2.0

Apache Software Foundation Apache HTTP Server 2.2.1

2.2.1

Apache Software Foundation Apache HTTP Server 2.2.2

2.2.2

Apache Software Foundation Apache HTTP Server 2.2.3

2.2.3

Apache Software Foundation Apache HTTP Server 2.2.4

2.2.4

Apache Software Foundation Apache HTTP Server 2.2.6

2.2.6

Apache Software Foundation Apache HTTP Server 2.2.8

2.2.8

Apache Software Foundation Apache HTTP Server 2.2.9

2.2.9

Apache Software Foundation Apache HTTP Server 2.2.10

2.2.10

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534712

Exploit

APPLE-SA-2009-11-09-1

SUSE-SA:2009:050

[apache-httpd-dev] 20090628 mod_deflate DoS

Exploit

[apache-httpd-dev] 20090703 Re: mod_deflate DoS

HPSBUX02612

SSRT090208

55782

35721

Vendor Advisory

35781

Vendor Advisory

35793

Vendor Advisory

35865

Vendor Advisory

37152

Vendor Advisory

37221

Vendor Advisory

GLSA-200907-04

http://support.apple.com/kb/HT3937

http://wiki.rpath.com/Advisories:rPSA-2009-0142

http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0142

DSA-1834

MDVSA-2009:149

Patch

RHSA-2009:1156

20091113 rPSA-2009-0142-2 httpd mod_ssl

1022529

USN-802-1

ADV-2009-1841

Vendor Advisory

ADV-2009-3184

Vendor Advisory

PK91361

PK99480

https://bugzilla.redhat.com/show_bug.cgi?id=509125

Patch

[httpd-cvs] 20190815 svn commit: r1048742 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20190815 svn commit: r1048743 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

oval:org.mitre.oval:def:12361

oval:org.mitre.oval:def:8632

oval:org.mitre.oval:def:9248

RHSA-2009:1148

Patch

FEDORA-2009-8812

[httpd-cvs] 20190815 svn commit: r1048743 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20190815 svn commit: r1048742 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20200401 svn commit: r1058586 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20200401 svn commit: r1058586 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20200401 svn commit: r1058587 [2/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

[httpd-cvs] 20200401 svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html

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