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CVE-2009-1891

Date: July 10, 2009

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).

Language: C

Severity Score

5.9

Related Resources (59)

Url: http://secunia.com/advisories/35865

Url: https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12361

Url: http://marc.info/?l=bugtraq&m=130497311408250&w=2

Url: http://www.debian.org/security/2009/dsa-1834

Url: https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E

Url: http://secunia.com/advisories/35781

Url: https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01363.html

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2009-1891

Url: https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E

Url: https://access.redhat.com/security/cve/CVE-2009-1891

Url: http://marc.info/?l=apache-httpd-dev&m=124661528519546&w=2

Url: http://osvdb.org/55782

Url: https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E

Url: http://www.securityfocus.com/archive/1/507857/100/0/threaded

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

Url: https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E

Url: http://www.vupen.com/english/advisories/2009/1841

Url: https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E

Url: http://www.vupen.com/english/advisories/2009/3184

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

Url: https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/r84d043c2115176958562133d96d851495d712aa49da155d81f6733be%40%3Ccvs.httpd.apache.org%3E

Url: http://www-01.ibm.com/support/docview.wss?uid=swg1PK99480

Url: http://www.securitytracker.com/id?1022529

Url: https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E

Url: http://marc.info/?l=apache-httpd-dev&m=124621326524824&w=2

Url: https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E

Url: http://www-01.ibm.com/support/docview.wss?uid=swg1PK91361

Url: http://secunia.com/advisories/35721

Url: http://secunia.com/advisories/37221

Url: https://nvd.nist.gov/vuln/detail/CVE-2009-1891

Url: http://security.gentoo.org/glsa/glsa-200907-04.xml

Url: https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/rb9c9f42dafa25d2f669dac2a536a03f2575bc5ec1be6f480618aee10%40%3Ccvs.httpd.apache.org%3E

Url: http://secunia.com/advisories/37152

Url: http://www.redhat.com/support/errata/RHSA-2009-1156.html

Url: http://marc.info/?l=bugtraq&m=129190899612998&w=2

Url: http://www.mandriva.com/security/advisories?name=MDVSA-2009:149

Url: https://lists.apache.org/thread.html/r7dd6be4dc38148704f2edafb44a8712abaa3a2be120d6c3314d55919%40%3Ccvs.httpd.apache.org%3E

Url: http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html

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

Url: https://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E

Url: https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E

Url: http://secunia.com/advisories/35793

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8632

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9248

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

Url: https://rhn.redhat.com/errata/RHSA-2009-1148.html

Url: https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E

Url: http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00006.html

Url: http://www.ubuntu.com/usn/USN-802-1

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

Url: https://www.mend.io/vulnerability-database/CVE-2009-1891

Severity Score

5.9

Weakness Type (CWE)

Resource Management Errors

CWE-399

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

CVSS v3.1

Base Score:	5.9
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	7.1
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

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