Vulnerability Monitor

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CVE-2018-10545

An issue was discovered in PHP before 5.6.35, 7.0.x before 7.0.29, 7.1.x before 7.1.16, and 7.2.x before 7.2.4. Dumpable FPM child processes allow bypassing opcache access controls because fpm_unix.c makes a PR_SET_DUMPABLE prctl call, allowing one user (in a multiuser environment) to obtain sensitive information from the process memory of a second user's PHP applications by running gcore on the PID of the PHP-FPM worker process.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.7, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 4 products from php, from canonical, from debian and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-04-29T21:29:00.277

Last Modified

2024-11-21T03:41:32.050

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 4.7 (MEDIUM)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.4

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	php	php	< 5.6.35	Yes
Application	php	php	< 7.0.29	Yes
Application	php	php	< 7.1.16	Yes
Application	php	php	< 7.2.4	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	17.10	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Application	netapp	storage_automation_store	-	Yes

References

http://php.net/ChangeLog-5.php Patch, Vendor Advisory ([email protected])
http://php.net/ChangeLog-7.php Patch, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/104022 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2019:2519 ([email protected])
https://bugs.php.net/bug.php?id=75605 Issue Tracking, Patch, Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201812-01 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20180607-0003/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3646-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3646-2/ Third Party Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4240 Third Party Advisory ([email protected])
https://www.tenable.com/security/tns-2018-12 Third Party Advisory ([email protected])
http://php.net/ChangeLog-5.php Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://php.net/ChangeLog-7.php Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/104022 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:2519 (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.php.net/bug.php?id=75605 Issue Tracking, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201812-01 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20180607-0003/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3646-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3646-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4240 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.tenable.com/security/tns-2018-12 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For php's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.