Out-of-bounds Write

Affecting glibc package, versions <2.27-3ubuntu1.2

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Overview

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.

References

CVSS Score

7.8
medium severity
  • Attack Vector
    Local
  • Attack Complexity
    Low
  • Privileges Required
    Low
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE
CVE-2018-11237
CWE
CWE-787
Snyk ID
SNYK-UBUNTU1804-GLIBC-451228
Disclosed
18 May, 2018
Published
18 May, 2018