Vulnerability in Apache HTTP Server
CVE-2014-3523
Memory leak in the winnt_accept function in server/mpm/winnt/child.c in the WinNT MPM in the Apache HTTP Server 2.4.x before 2.4.10 on Windows, when the default AcceptFilter is enabled, allows remote attackers to cause a denial of service (memory consumption) via crafted requests.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.164 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.164 · newest: 0.164 · change: 0.000
Affected products
- Apache HTTP Server — versions 2.4.1, 2.4.2, 2.4.3
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- svn.apache.org/viewvc/httpd/httpd/trunk/server/mpm/winnt/child.c
- marc.info/ (vendor-advisory)
- httpd.apache.org/security/vulnerabilities_24.html (Patch, Vendor Advisory)
- marc.info/ (vendor-advisory)
- svn.apache.org/viewvc/httpd/httpd/trunk/server/mpm/winnt/child.c
- rhn.redhat.com/errata/RHSA-2016-2957.html (vendor-advisory)
- www.securityfocus.com/bid/68747 (vdb-entry)
- lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd6… (mailing-list)
- lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209… (mailing-list)
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc58… (mailing-list)
Frequently asked questions
- What is CVE-2014-3523?
- CVE-2014-3523 is a vulnerability in Apache HTTP Server, classified under CWE-399. Published 2014-07-20.
- Is CVE-2014-3523 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.