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Vulnerability record · CVE-2014-0118 · published 20 July 2014

CVE-2014-0118: Apache http server uncontrolled resource consumption vulnerability

Apache · Http Server

The deflate_in_filter function in mod_deflate.c in the mod_deflate module in the Apache HTTP Server before 2.4.10, when request body decompression is enabled, allows remote attackers to cause a denial of service (resource consumption) via crafted request data that decompresses to a much larger size.

4.3 CVSS 2.0 Medium EPSS 37% · top 1.5% CWE-400 · Uncontrolled resource consumption
4.3CVSS 2.0 base score
37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
86References
17 Jun 2026Last modified by NVD

Description

The deflate_in_filter function in mod_deflate.c in the mod_deflate module in the Apache HTTP Server before 2.4.10, when request body decompression is enabled, allows remote attackers to cause a denial of service (resource consumption) via crafted request data that decompresses to a much larger size.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://advisories.mageia.org/MGASA-2014-0304.html Third Party Advisory
http://advisories.mageia.org/MGASA-2014-0305.html Third Party Advisory
http://httpd.apache.org/security/vulnerabilities_24.html PatchVendor Advisory
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html Broken LinkMailing List
http://marc.info/?l=bugtraq&m=143403519711434&w=2 Issue TrackingMailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=143748090628601&w=2 Issue TrackingMailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=144050155601375&w=2 Issue TrackingMailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=144493176821532&w=2 Issue TrackingMailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1019.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1020.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-1021.html Broken Link
http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/CHANGES Vendor Advisory
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/filters/mod_deflate.c Vendor Advisory
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/filters/mod_deflate.c?r1=1604353&r2=1610501&diff_format=h PatchVendor Advisory
http://www.debian.org/security/2014/dsa-2989 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2014:142 Broken Link
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html Third Party Advisory
http://www.securityfocus.com/bid/68745 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1120601 Issue TrackingThird Party Advisory
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04832246 Third Party Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org

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Source: NIST National Vulnerability Database (record CVE-2014-0118), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.