CVE-2018-11237

glibc: Buffer overflow in __mempcpy_avx512_no_vzeroupper

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Severity

Moderate

Red Hat Product Security

5.6

CVSS 3.0

Review impact separately from score.

Published · May 17, 2018

Updated · November 21, 2025

Description

A buffer overflow has been discovered in the GNU C Library (aka glibc or libc6) in the __mempcpy_avx512_no_vzeroupper function when particular conditions are met. An attacker could use this vulnerability to cause a denial of service or potentially execute code.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.6
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer