Vulnerability Monitor

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CVE-2018-11237

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.8, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 10 products from gnu, from redhat, from redhat and 7 others, 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

2018-05-18T16:29:00.417

Last Modified

2024-11-21T03:42:58.060

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	glibc	≤ 2.27	Yes
Application	redhat	virtualization_host	4.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes
Application	oracle	communications_session_border_controller	8.0.0	Yes
Application	oracle	communications_session_border_controller	8.1.0	Yes
Application	oracle	communications_session_border_controller	8.2.0	Yes
Application	oracle	enterprise_communications_broker	3.0.0	Yes
Application	oracle	enterprise_communications_broker	3.1.0	Yes
Application	netapp	data_ontap_edge	-	Yes
Application	netapp	element_software_management	-	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.10	Yes

References

http://www.securityfocus.com/bid/104256 Broken Link ([email protected])
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3092 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190329-0001/ Broken Link ([email protected])
https://security.netapp.com/advisory/ntap-20190401-0001/ Third Party Advisory ([email protected])
https://sourceware.org/bugzilla/show_bug.cgi?id=23196 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://usn.ubuntu.com/4416-1/ Third Party Advisory ([email protected])
https://www.exploit-db.com/exploits/44750/ Broken Link, Third Party Advisory, VDB Entry ([email protected])
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/104256 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3092 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190329-0001/ Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190401-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://sourceware.org/bugzilla/show_bug.cgi?id=23196 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4416-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/44750/ Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch, 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 gnu'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.