HOMEVULNERABILITIESCVE-2018-1302
MEDIUM

CVE-2018-1302

CWE-476Published: March 26, 2018· Updated: Jun 17, 2026

5.9
CVSS v3.1

Official Description

When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk.

NVD Source

Technical Analysis

CVE-2018-1302 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Apache1 product(s)
http server
Canonical1 product(s)
ubuntu linux
netapp4 product(s)
clustered data ontapsantricity cloud connectorstorage automation storestoragegrid
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2018/03/24/5
ADVISORYhttp://www.securityfocus.com/bid/103528
ADVISORYhttp://www.securitytracker.com/id/1040567
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0366
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0367
ADVISORYhttps://httpd.apache.org/security/vulnerabilities_24.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20180601-0004/
ADVISORYhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us
ADVISORYhttps://usn.ubuntu.com/3783-1/
ADVISORYhttp://www.openwall.com/lists/oss-security/2018/03/24/5
ADVISORYhttp://www.securityfocus.com/bid/103528
ADVISORYhttp://www.securitytracker.com/id/1040567
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0366
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:0367
ADVISORYhttps://httpd.apache.org/security/vulnerabilities_24.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20180601-0004/
ADVISORYhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us
ADVISORYhttps://usn.ubuntu.com/3783-1/

All References (46)

→
http://www.openwall.com/lists/oss-security/2018/03/24/5Mailing List · Third Party Advisory
→
http://www.securityfocus.com/bid/103528Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1040567Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2019:0366Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:0367Third Party Advisory
→
https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
→
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
→
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E

Quick Facts

CVE IDCVE-2018-1302
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected3 vendor(s)
PublishedMar 26, 2018

Related CVEs (CWE-476)

CVE-2010-2495
10.0
CVE-2022-36648
10.0
CVE-2016-6692
9.8
CVE-2015-0573
9.8
CVE-2015-9043
9.8
CVE-2015-8787
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1302 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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