Out-of-bounds Write Affecting glibc package, versions <2.27-4


low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.06% (21st percentile)
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NVD
7.8 high
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SUSE
5.6 medium
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Red Hat
5.6 medium

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  • Snyk ID SNYK-DEBIAN10-GLIBC-356883
  • published 18 May 2018
  • disclosed 18 May 2018

How to fix?

Upgrade Debian:10 glibc to version 2.27-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.