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Vulnerability record · CVE-2005-2970 · published 25 October 2005

CVE-2005-2970: Apache http server allocation without limits vulnerability

Apache · Http Server

Memory leak in the worker MPM (worker.c) for Apache 2, in certain circumstances, allows remote attackers to cause a denial of service (memory consumption) via aborted connections, which prevents the memory for the transaction pool from being reused for other connections.

5.0 CVSS 2.0 Medium EPSS 14% · top 3.5% CWE-770 · Allocation without limits
5.0CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
56References
16 Jun 2026Last modified by NVD

Description

Memory leak in the worker MPM (worker.c) for Apache 2, in certain circumstances, allows remote attackers to cause a denial of service (memory consumption) via aborted connections, which prevents the memory for the transaction pool from being reused for other connections.

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

Affected products

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

References

LinkTags
http://mail-archives.apache.org/mod_mbox/httpd-cvs/200509.mbox/%3C20051001110218.40692.qmail%40minotaur.apache.org%3E
http://rhn.redhat.com/errata/RHSA-2006-0159.html Third Party Advisory
http://secunia.com/advisories/16559 Not Applicable
http://secunia.com/advisories/17923 Not Applicable
http://secunia.com/advisories/18161 Not Applicable
http://secunia.com/advisories/18333 Not Applicable
http://secunia.com/advisories/18585 Not Applicable
http://securitytracker.com/id?1015093 Broken LinkThird Party AdvisoryVDB Entry
http://svn.apache.org/viewcvs?rev=292949&view=rev Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2005:233 Broken Link
http://www.novell.com/linux/security/advisories/2005_28_sr.html Broken Link
http://www.redhat.com/archives/fedora-announce-list/2006-January/msg00060.html Mailing ListThird Party Advisory
http://www.securityfocus.com/archive/1/425399/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/15762 Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r652fc951306cdeca5a276e2021a34878a76695a9f3cfb6490b4a6840%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/reb542d2038e9c331506e0cbff881b47e40fbe2bd93ff00979e60cdf7%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10043 Third Party Advisory
https://www.ubuntu.com/usn/usn-225-1/ Third Party Advisory
http://mail-archives.apache.org/mod_mbox/httpd-cvs/200509.mbox/%3C20051001110218.40692.qmail%40minotaur.apache.org%3E
http://rhn.redhat.com/errata/RHSA-2006-0159.html Third Party Advisory
http://secunia.com/advisories/16559 Not Applicable
http://secunia.com/advisories/17923 Not Applicable
http://secunia.com/advisories/18161 Not Applicable
http://secunia.com/advisories/18333 Not Applicable
http://secunia.com/advisories/18585 Not Applicable
http://securitytracker.com/id?1015093 Broken LinkThird Party AdvisoryVDB Entry
http://svn.apache.org/viewcvs?rev=292949&view=rev Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2005:233 Broken Link
http://www.novell.com/linux/security/advisories/2005_28_sr.html Broken Link
http://www.redhat.com/archives/fedora-announce-list/2006-January/msg00060.html Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2005-2970), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.