CVE & CISA-KEV Catalog

CVE-2018-7584

CRITICALEPSS 100th pctl
9.8
CVSS v3
NVD

Description

In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while parsing an HTTP response in the php_stream_url_wrap_http_ex function in ext/standard/http_fopen_wrapper.c. This subsequently results in copying a large string.

CWE-119Buffer Overflow

How to fix

Remediation Available
libapache2-mod-php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.24USN-3600-1
libapache2-mod-php7.0Ubuntu
Fixed in:7.0.28-0ubuntu0.16.04.1USN-3600-1
php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.24USN-3600-1
php5-cgiUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.24USN-3600-1
php5-cliUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.24USN-3600-1
php5-fpmUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.24USN-3600-1
php7.0Ubuntu
Fixed in:7.0.28-0ubuntu0.16.04.1USN-3600-1
php7.0-cgiUbuntu
Fixed in:7.0.28-0ubuntu0.16.04.1USN-3600-1
php7.0-cliUbuntu
Fixed in:7.0.28-0ubuntu0.16.04.1USN-3600-1
php7.0-fpmUbuntu
Fixed in:7.0.28-0ubuntu0.16.04.1USN-3600-1

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

87.61%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Issue Tracking1
Release Notes1
Other references1

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--

Common questions

How do I fix CVE-2018-7584?

Published advisories record a fix for 10 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2018-7584 being actively exploited?

Not that we know of. CVE-2018-7584 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 87.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2018-7584?

CVE-2018-7584 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-7584 affect?

Published advisories record a fix for libapache2-mod-php5 (Ubuntu), libapache2-mod-php7.0 (Ubuntu), php5 (Ubuntu), php5-cgi (Ubuntu), and 6 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.